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 @ 02:51
Script: /main/jgs_galerie_kategorie.php?kategorie=8&page=1&sid=84b5029651cc3306074281c44c21747e
Referer: