[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/class_loader.php on line 160: require([ROOT]/phpbb/lock/flock.php): failed to open stream: Too many open files in system
[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/class_loader.php on line 160: require([ROOT]/phpbb/lock/flock.php): failed to open stream: Too many open files in system

Fatal error: require(): Failed opening required './phpbb/lock/flock.php' (include_path='.:/opt/php7.4/lib/php') in /home/clients/a808e705ea91c617a35d28b5dc6d0ae8/web/phpBB3/phpbb/class_loader.php on line 160