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: 29.03.2024 @ 01:45
Script: /board/profile.php?userid=66&sid=eb7ce552c9ff79bac508c098af9384e0
Referer: