Problem¶

• Upgraded a TYPO3 version from 10 to 11.5 LTS
• deleted some superfluous backend users (also admins)
• while removing some as deleted marked records a delete action via the recycler module throws an exception

Error Message¶

Core: Exception handler (WEB): Uncaught TYPO3 Exception: #1476107295: PHP Warning: Undefined array key "cruser_id" in /var/www/html/vendor/typo3/cms-recycler/Classes/Controller/RecyclerAjaxController.php line 191 | TYPO3\CMS\Core\Error\Exception thrown in file /var/www/html/vendor/typo3/cms-core/Classes/Error/ErrorHandler.php in line 137. Requested URL: https://myproject.docker/typo3/ajax/recycler?token=--AnonymizedToken--&action=getDeletedRecords&depth=999&startUid=1&table=tx_sessionplaner_domain_model_session&filterTxt=&start=0&limit=25