Warning: require(../index.php): Failed to open stream: No such file or directory in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-backend/Resources/Private/Php/legacy-backend.php on line 48

Fatal error: Uncaught Error: Failed opening required '../index.php' (include_path='.:/opt/alt/php82/usr/share/pear:/opt/alt/php82/usr/share/php:/usr/share/pear:/usr/share/php') in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-backend/Resources/Private/Php/legacy-backend.php:48 Stack trace: #0 {main} thrown in /home/rcmch/test.m-s-i.ch/vendor/typo3/cms-backend/Resources/Private/Php/legacy-backend.php on line 48