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: 28.03.2024 @ 22:53
Script: /board/login.php?sid=6b65b5ffb2d3074f2265b2c46f5093d7
Referer: