SQL-DATABASE ERROR

Database error in (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.4.33
Date: 16.05.2024 @ 10:53
Script: /wbb2/jgs_portal.php?id=1&sid=6207e4a14215db330616e611b9d49a4d
Referer: http://www.friendsbistro.de/wbb2/jgs_portal.php?id=1&sid=6207e4a14215db330616e611b9d49a4d