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: 22.05.2024 @ 13:04
Script: /wbb2/usercp.php?action=buddy&add=98&sid=d953b5491cb9b85adaf489105d40fc07
Referer: