Fatal error: Uncaught exception Exception with message Cannot create file "" thrown in system/modules/core/library/Contao/File.php on line 334
#0 system/modules/core/library/Contao/File.php(129): Contao\File->createIfNotExists()
#1 system/modules/efg/classes/Formdata.php(2235): Contao\File->__construct('???????????????...')
#2 system/modules/efg/classes/FormdataProcessor.php(469): Efg\Formdata->prepareMailData(Object(stdClass), Array, Array, Array, Array)
#3 system/modules/core/forms/Form.php(484): Efg\FormdataProcessor->processSubmittedData(Array, Array, Array, Array, Object(Efg\ExtendedForm))
#4 system/modules/core/forms/Form.php(225): Contao\Form->processFormData(Array, Array)
#5 system/modules/efg/forms/ExtendedForm.php(149): Contao\Form->compile()
#6 system/modules/core/classes/Hybrid.php(218): Efg\ExtendedForm->compile()
#7 system/modules/core/forms/Form.php(56): Contao\Hybrid->generate()
#8 system/modules/core/library/Contao/Controller.php(456): Contao\Form->generate()
#9 system/modules/core/modules/ModuleArticle.php(205): Contao\Controller->getContentElement(Object(Contao\ContentModel), 'main')
#10 system/modules/core/modules/Module.php(148): Contao\ModuleArticle->compile()
#11 system/modules/core/modules/ModuleArticle.php(59): Contao\Module->generate()
#12 system/modules/core/library/Contao/Controller.php(392): Contao\ModuleArticle->generate(false)
#13 system/modules/core/library/Contao/Controller.php(254): Contao\Controller->getArticle(Object(Contao\ArticleModel), false, false, 'main')
#14 system/modules/core/pages/PageRegular.php(138): Contao\Controller->getFrontendModule('0', 'main')
#15 index.php(249): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#16 index.php(433): Index->run()
#17 {main}