Warning: Missing argument 2 for ModuleCSSExport::exportStyleSheet(), called in /www/htdocs/.../contao/system/modules/core/classes/Backend.php on line 278 and defined in system/modules/cssexport/ModuleCSSExport.php on line 65
#0 system/modules/cssexport/ModuleCSSExport.php(65): __error(2, 'Missing argumen...', '/www/htdocs/....', 65, Array)
#1 system/modules/core/classes/Backend.php(278): ModuleCSSExport->exportStyleSheet(Object(Contao\DC_Table))
#2 contao/main.php(136): Contao\Backend->getBackendModule('themes')
#3 contao/main.php(287): Main->run()
#4 {main}
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/.../contao/system/helper/functions.php:70) in system/modules/core/library/Contao/Template.php on line 298
#0 [internal function]: __error(2, 'Cannot modify h...', '/www/htdocs/....', 298, Array)
#1 system/modules/core/library/Contao/Template.php(298): header('Vary: User-Agen...', false)
#2 system/modules/core/classes/BackendTemplate.php(162): Contao\Template->output()
#3 contao/main.php(278): Contao\BackendTemplate->output()
#4 contao/main.php(140): Main->output()
#5 contao/main.php(287): Main->run()
#6 {main}
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/.../contao/system/helper/functions.php:70) in system/modules/core/library/Contao/Template.php on line 299
#0 [internal function]: __error(2, 'Cannot modify h...', '/www/htdocs/....', 299, Array)
#1 system/modules/core/library/Contao/Template.php(299): header('Content-Type: t...')
#2 system/modules/core/classes/BackendTemplate.php(162): Contao\Template->output()
#3 contao/main.php(278): Contao\BackendTemplate->output()
#4 contao/main.php(140): Main->output()
#5 contao/main.php(287): Main->run()
#6 {main}
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