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: 29.03.2024 @ 05:20
Script: /board/usercp.php?action=options_change&sid=c3990570709266daa28477f33e12a11f
Referer: