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: 23.04.2024 @ 22:57
Script: /board/editpost.php?postid=15082&sid=87da9ab645da58a50aa1745325a62707
Referer: