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: 26.04.2024 @ 13:56
Script: /board/login.php?sid=4c493ea8b6b48c3c679ecdd34c1e002d
Referer: