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 @ 00:20
Script: /wbb2/addreply.php?action=quote&postid=1082813&sid=56b24cd85e03aa6c7ff6544ba92752a6
Referer: http://www.friendsbistro.de/wbb2/addreply.php?action=quote&postid=1082813&sid=56b24cd85e03aa6c7ff6544ba92752a6