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 @ 10:23
Script: /board/search.php?action=24h&sid=7f5ee6e212612fa71742e5543a4b5e99
Referer: