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: 27.04.2024 @ 01:09
Script: /main/jgs_portal_box.php?id=24&sid=5f3128a86be64fa70b4e4c7901e0d7bc
Referer: