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: 28.03.2024 @ 15:42
Script: /board/login.php?sid=a823be788c255cff6f0bff1e896a5a0c
Referer: