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: 20.04.2024 @ 12:18
Script: /board/forgotpw.php?sid=649c55fbf376f5f5b7297847c6e31bf6
Referer: