Warning: include_once(../config/configuration.php): failed to open stream: No such file or directory in /home/httpd/vhosts/dukers.ch/leantime.dukers.ch/public/index.php on line 8

Warning: include_once(): Failed opening '../config/configuration.php' for inclusion (include_path='.:/usr/share/pear:/usr/share/php') in /home/httpd/vhosts/dukers.ch/leantime.dukers.ch/public/index.php on line 8

Fatal error: Uncaught Error: Class 'leantime\core\config' not found in /home/httpd/vhosts/dukers.ch/leantime.dukers.ch/public/index.php:10
Stack trace:
#0 {main}
  thrown in /home/httpd/vhosts/dukers.ch/leantime.dukers.ch/public/index.php on line 10