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: 28.03.2024 @ 10:06
Script: /main/jgs_portal_box.php?id=35&sid=d6bc07afd6f865149f81f040f00f46b5
Referer: