SQL Access Error! Respond Quickly!

Guys please help this is urgent!
So I just set up and account and leased a domain, but when I created an SQL database and tried to access it via a PHP function, I got the following error:

Access denied for user 'unaux_24369285'@'192.168.0.64' (using password: YES) in /home/vol11_6/unaux.com/unaux_24369285/htdocs/backend/sql.php

Even though I properly set up SQL and checked all parameters, nothing is working!

My domain is: http://joblover.ml

What should I do please help!