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: 01.06.2024 @ 06:01
Script: /wbb2/profile.php?%3Fsid=258f0b2a11124d75c57d0fe17be3502f
Referer: http://www.friendsbistro.de/wbb2/profile.php?%3Fsid=258f0b2a11124d75c57d0fe17be3502f