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: 20.04.2024 @ 14:04
Script: /board/index.php?sid=d18de0958e02da957a1ed9e5dd10e6e2
Referer: