Fatal error: Uncaught Error: Class "TYPO3\CMS\Core\Locking\Exception\LockAcquireException" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Locking/Exception/LockAcquireWouldBlockException.php:21 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Locking/Exception/LockAcquireWouldBlockException.php on line 21