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: 13.05.2024 @ 12:58
Script: /wbb2/index.php?hidecat=190&sid=05ec2cc45c73c2440ac188cf60e012c1
Referer: http://friendsbistro.de/wbb2/index.php?hidecat=190&sid=05ec2cc45c73c2440ac188cf60e012c1