Warning: require(/home/.sites/124/site219/web/malfreude-testWP/wp-includes/class-wp-filter-sentinel.php): Failed to open stream: No such file or directory in /home/.sites/124/site219/web/malfreude-testWP/wp-includes/plugin.php on line 26

Fatal error: Uncaught Error: Failed opening required '/home/.sites/124/site219/web/malfreude-testWP/wp-includes/class-wp-filter-sentinel.php' (include_path='.:/opt/alt/php83/usr/share/pear:/opt/alt/php83/usr/share/php:/usr/share/pear:/usr/share/php') in /home/.sites/124/site219/web/malfreude-testWP/wp-includes/plugin.php:26
Stack trace:
#0 /home/.sites/124/site219/web/malfreude-testWP/wp-settings.php(53): require_once()
#1 /home/.sites/124/site219/web/malfreude-testWP/wp-config.php(124): require_once('/home/.sites/12...')
#2 /home/.sites/124/site219/web/malfreude-testWP/wp-load.php(50): require_once('/home/.sites/12...')
#3 /home/.sites/124/site219/web/malfreude-testWP/wp-blog-header.php(13): require_once('/home/.sites/12...')
#4 /home/.sites/124/site219/web/index.php(17): require('/home/.sites/12...')
#5 {main}
  thrown in /home/.sites/124/site219/web/malfreude-testWP/wp-includes/plugin.php on line 26