SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Access denied for user 'HTO01FLBUQTS'@'c4aweb29.aul.t-online.de' (using password: YES)
mysql error number: 1045
Date: 22.08.2018 @ 06:12
Script: /wbblite/profile.php?userid=343&sid=5adea9108555c06d47ea6305d89e4740
Referer: