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 @ 13:03
Script: /board/newthread.php?boardid=4&sid=e013cf83db9bbe24085cb3fb3a972fa0
Referer: