Fix Error on Xibo Login

Closed - This job posting has been filled and work has been completed.

Job Description

Xibo has been loaded onto the following website and the installation was successful but I am unable to login with the admin account. When the username & password is entered, it doesn't login and doesn't display any error message either. I have tried multiple installations on different domains on my server but encounter the same problem.
Xibo Admin Username: xibo_admin
Password: 0d35k

I need the error fixed and the caused and solution explained afterwards so that I do not encounter this error again.