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: 23.04.2024 @ 21:18
Script: /board/newthread.php?boardid=7&sid=388caa656b8df3386664b7e231021564
Referer: