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: 24.04.2024 @ 23:38
Script: /board/profile.php?userid=1&sid=f1310c5dababcc2afac60906c6f7fc01
Referer: