SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.3.31-1~deb10u1
Date: 28.04.2024 @ 16:37
Script: /editpost.php?postid=448756&sid=3db3cdada260138aad43fb9bdefede5c
Referer: