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 @ 00:07
Script: /main/jgs_galerie_melden.php?action=melden&bildid=223&page=3&bilduserid=1&sid=0ccd9a3c25700d43e7b0c55d5ae963c3
Referer: