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: 18.04.2024 @ 17:25
Script: /board/profile.php?userid=53&sid=e2fc4c2c800bdde1c2038218064e12b6
Referer: