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: 26.04.2024 @ 18:43
Script: /board/editpost.php?postid=15082&sid=676aad2dda36bdf5047db5eeb6f849d3
Referer: