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 @ 20:55
Script: /main/board.php?boardid=79&page=1&daysprune=1000&sortfield=vote&sortorder=ASC&sid=236100a6f4f555933ea5dd2f6a52e821
Referer: