Fatal error: Declaration of WapplerSystems\Videos\Backend\Form\Container\FileReferenceContainer::renderFileReferenceHeaderControl(): string must be compatible with TYPO3\CMS\Backend\Form\Container\FileReferenceContainer::renderFileReferenceHeaderControl(?TYPO3\CMS\Core\Resource\File $file = null): string in /var/www/clients/client1/web20/web/vendor/wapplersystems/videos/Classes/Backend/Form/Container/FileReferenceContainer.php on line 46