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: 19.04.2024 @ 07:46
Script: /main/jgs_portal_links_user.php?action=link_redirect&id=2&sid=b7e37605d4acb93860d1a07e96fd7de0
Referer: