Fatal error: Uncaught TypeError: Return value of Shopware_Plugins_Core_PostFilter_Bootstrap::handleMediaPlugin() must be of the type string, null returned in /www/htdocs/w015c3a5/singliesel.de/engine/Shopware/Plugins/Default/Core/PostFilter/Bootstrap.php:320
Stack trace:
#0 /www/htdocs/w015c3a5/singliesel.de/engine/Shopware/Plugins/Default/Core/PostFilter/Bootstrap.php(180): Shopware_Plugins_Core_PostFilter_Bootstrap->handleMediaPlugin('...\n ...')
#1 [internal function]: Shopware_Plugins_Core_PostFilter_Bootstrap->rewriteSrc(Array)
#2 /www/htdocs/w015c3a5/singliesel.de/engine/Shopware/Plugins/Default/Core/PostFilter/Bootstrap.php(142): preg_replace_callback('#<(a|form|ifram...', Array, '\n<!DOCTYPE html...')
#3 /www/htdocs/w015c3a5/singliesel.de/engine/Shopware/Plugins/Default/Core/PostFilter/Bootstrap.php(103): Shopware_Plugins_Core_PostFilter_Bootstrap->filterSource('\n<!DOCTYPE html...')
#4 /www/htdocs/w015c3a5/singliesel.de/engine/Library/Enlight/Event/Handler/Plugin.php(155): Shopware_Plugins_Core_PostFilt in /www/htdocs/w015c3a5/singliesel.de/engine/Shopware/Plugins/Default/Core/PostFilter/Bootstrap.php on line 320