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: 16.04.2024 @ 09:08
Script: /board/profile.php?userid=54&sid=45ae03e0dc11acc121e3a83b714cf5c9
Referer: