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: 28.03.2024 @ 13:55
Script: /wbb2/register.php?sid=2a348373067fe01c24602c84c1fa2b3e
Referer: