SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Access denied for user 'web6'@'localhost' (using password: YES)
mysql error number: 1045
mysql version: unknown
php version: 5.6.40-68+0~20230902.80+debian11~1.gbpa2012b
Date: 19.04.2024 @ 20:07
Script: /main/jgs_galerie.php?sid=9bbf1f11d6c2eac2d7b0dfa811da1550
Referer: