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 @ 03:37
Script: /wbb2/search.php?action=24h&sid=d8148393423a418d70e422800c8d4c48
Referer: http://www.friendsbistro.de/wbb2/search.php?action=24h&sid=d8148393423a418d70e422800c8d4c48