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 @ 15:45
Script: /board/profile.php?userid=8&sid=1cb88eabe9c3daa155225ecca5ba2aa4
Referer: