Fatal error: Uncaught Error: Interface "JTL\Widgets\WidgetInterface" not found in /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/src/Widgets/AbstractWidget.php:15 Stack trace: #0 /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/vendor/composer/ClassLoader.php(571): include() #1 /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/var/customers/...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('JTL\\Widgets\\Abs...') #3 /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/class_aliases.php(15): class_alias('JTL\\Widgets\\Abs...', 'WidgetBase') #4 /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/autoload.php(10): require_once('/var/customers/...') #5 /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/globalinclude.php(38): require_once('/var/customers/...') #6 /var/customers/webs/flachkanal/flachkanalmarkt.de/index.php(5): require('/var/customers/...') #7 {main} thrown in /var/customers/webs/flachkanal/flachkanalmarkt.de/includes/src/Widgets/AbstractWidget.php on line 15