SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.2.34-nmm9
Date: 12.05.2024 @ 09:05
Script: /wbb2/usercp.php?action=signature_edit&sid=87d31ddf43a02624cd7360ae4056e0c5
Referer: