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 @ 15:30
Script: /board/profile.php?userid=66&sid=8567ce3c65c6b00e0aeb71e428a16b97
Referer: