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 @ 16:39
Script: /wbb2/misc.php?action=faq&sid=7c74c918072b0ce9baf95b1d4d39b20b
Referer: http://www.friendsbistro.de/wbb2/misc.php?action=faq&sid=7c74c918072b0ce9baf95b1d4d39b20b