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: 16.04.2024 @ 10:35
Script: /main/jgs_galerie_userbilder.php?kategorie=2&bildid=2&sid=72d9671ccc82ca0a788e8710b47c2fe1
Referer: