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: 14.05.2024 @ 01:19
Script: /wbb2/profile.php?userid=7615&sid=381fe6e3d68a9536e0ecdfe20e640c6b
Referer: http://www.friendsbistro.de/wbb2/profile.php?userid=7615&sid=381fe6e3d68a9536e0ecdfe20e640c6b