Everything works fine with this free webhost.
Public Demo Link: http://githubad.epizy.com/cms/
Admin Demo Link: http://githubad.epizy.com/cms/login.php
User:a Pass:a
Also hosted with free 000webhost service
Public Demo Link: https://githubad.000webhostapp.com/cms
Admin Demo Link: https://githubad.000webhostapp.com/cms/login.php
The code works perfectly fine on a local server and the paid hosting, but with this free 000webhost service, there's a redirection issue in demo link. So after you login, please manually check https://githubad.000webhostapp.com/cms/staff.php
Attached is a .sql file in codebase, for you to directly export it with PHPmyAdmin to make the overall app work. You just need to change the constants.php under includes folder to change the connection settings.