contao mit php 7.1. kompatibel? --> PHP Warning: A non-numeric value..

**LenaMaurer** · 11.02.2022, 20:30

Hallo!

Ich habe noch eine Seite mit Contao Open Source CMS 3.5.24 laufen. A1 hat diese scheinbar auf einen neuen Server übersiedelt und hier läuft php 7.1
Ich denke dadurch dürfte das Backend jetzt nicht mehr richtig funktionieren. Beim Speichern von Artikeln etc. kommt immer eine weiße Seite.

Bringe ich diese Contao Version zu laufen unter php 7.1 ohne update?
Oder bedeutet die Fehlermeldung etwas anderes?
__

Error log zeigt folgende Fehlermeldungen..

HTML-Code:

[11-Feb-2022 03:50:26 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 03:50:26 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('109', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 06:47:30 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 06:47:30 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('109', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 06:48:25 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), true, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 06:48:26 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('69', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 08:57:15 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 08:57:15 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('109', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 16:20:14 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 16:20:14 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('109', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 17:18:34 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), true, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 17:18:34 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('69', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 17:37:38 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#11 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#12 {main}

[11-Feb-2022 17:37:38 GMT] 
PHP Warning: A non-numeric value encountered in /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php on line 304
#0 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(304): __error(2, 'A non-numeric v...', '/var/www/vhosts...', 304, Array)
#1 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentElement.php(265): Contao\ContentGallery->compile()
#2 /var/www/vhosts/domain.at/domain.at/system/modules/core/elements/ContentGallery.php(76): Contao\ContentElement->generate()
#3 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(484): Contao\ContentGallery->generate()
#4 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#5 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#6 /var/www/vhosts/domain.at/domain.at/system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#7 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(true)
#8 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/InsertTags.php(430): Contao\Controller::getArticle('109', false, true)
#9 /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/Controller.php(692): Contao\InsertTags->replace('<!DOCTYPE html>...', false)
#10 /var/www/vhosts/domain.at/domain.at/system/modules/core/classes/FrontendTemplate.php(100): Contao\Controller::replaceInsertTags('<!DOCTYPE html>...', false)
#11 /var/www/vhosts/domain.at/domain.at/system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#12 /var/www/vhosts/domain.at/domain.at/system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#13 /var/www/vhosts/domain.at/domain.at/index.php(20): Contao\FrontendIndex->run()
#14 {main}

[11-Feb-2022 19:57:38 GMT] PHP Fatal error:  Cannot use 'String' as class name as it is reserved in /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/String.php on line 28
[11-Feb-2022 19:58:50 GMT] PHP Fatal error:  Cannot use 'String' as class name as it is reserved in /var/www/vhosts/domain.at/domain.at/system/modules/core/library/Contao/String.php on line 28

**mlweb** · 11.02.2022, 23:22

Contao ist seit irgendeiner Version 3.5.x mit PHP 7 kompatibel. Wenn Du also einen Fehler hast, solltest Du erst mal wenigstens auf die letzte Version von 3.5 updaten. Da ist Dein Fehler mit ziemlich großer Wahrscheinlichkeit behoben.

Abgesehen davon sehe ich es als fahrlässig an eine Website noch mit Contao 3.5 zu betreiben. Contao 3.5 wird seit Mai 2019 nicht mehr supported https://contao.org/de/release-plan.html.
PHP 7.1 ist auch schon seit Ende 2019 aus dem Support raus https://www.php.net/supported-versions.php