SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error:
mysql error number: 0
mysql version: unknown
php version: 7.3.33
Date: 24.04.2024 @ 03:23
Script: /wbb/login.php?sid=6496fd78876d7f272748d090ced8fbca
Referer: