SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Access denied for user 'root'@'localhost' (using password: YES)
mysql error number: 1045
mysql version: unknown
php version: 5.6.40-1~dotdeb+7.1
Date: 23.04.2024 @ 10:20
Script: /wbb2/thread.php?threadid=4&threadview=1&hilight=&hilightuser=0&sid=2b9347fcfeba26c1895e5514213eab31
Referer: