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 @ 10:40
Script: /board/newthread.php?boardid=24&sid=4ea2ecb2cadd4f39bafe23702957fbb9
Referer: