SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 19.04.2024 @ 23:43
Script: /board/profile.php?userid=50&sid=7f5ee6e212612fa71742e5543a4b5e99
Referer: