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 @ 15:40
Script: /board/forgotpw.php?sid=81ab8c5f535aa9f29f2341c8f8175281
Referer: