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: 20.04.2024 @ 01:24
Script: /main/jgs_galerie_userbilder.php?kategorie=3&bildid=256&page=2&sid=e536589c3b5d4c02e2c8f531da1d38fe
Referer: