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: 20.04.2024 @ 08:51
Script: /board/search.php?action=user&userid=24&sid=d225e37928af13423baa04e48048af0c
Referer: