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: 18.04.2024 @ 13:35
Script: /board/usercp.php?action=options_change&sid=d1546608a94e569c6bcde7986293b9ae
Referer: