 err.php!
/proc/151370/fd/2:  
ini_get(error_log): syslog

Fatal error: Uncaught Exception: Error in PHP 7.4.33 in /srv/app/zumba/htdocs/err.php:21 Stack trace: #0 {main} thrown in /srv/app/zumba/htdocs/err.php on line 21