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 @ 23:29
Script: /board/profile.php?userid=3&sid=c504dfd264cc49a1e7795a39df09c4f4
Referer: