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: 27.04.2024 @ 00:49
Script: /board/profile.php?userid=1&sid=bd21c9821b86391e08a46e5b9240ed07
Referer: