SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Access denied for user 'k3217v3388f4'@'2a00:17d8:200::221' (using password: YES)
mysql error number: 1045
Date: 26.05.2020 @ 12:53
Script: /board.php?boardid=280
Referer: