You have followed all the instructions to install the MakeContest script and when trying to login in the admin area for the fisrt time I see a blank screen and:

Site error: the file index.php requires the ionCube PHP Loader to be installed by the website operator. If you are the website operator please use the ionCube Loader Wizard to assist with installation.

The PHP ionCube loader is already installed in pretty much all of the shared hosting companies.

It is very easy to enable it or you can contact your hosting provider and they can enable it for you.

How to install IonCube:

  1. Login to your hosting Cpanel
  2. Locate the section where you see Services
  3. Select the PHP Config icon

  4. Check the box labeled "IonCube" under "Additional extensions available for Installation"

  5. Click "SAVE CHANGES"

Here is an excellent article that explains how to enable it in other hosting companies: