Deactivating Restrict Content Pro Causes Site To Not Load

Hi Everyone,

We recently had to deacativate Restrict Content Pro and found that the home page no longer loads, rather a white page shows up.

The moment we re-activate Restrict Content Pro, the content on the home page displayed again.

This situation concerns us in the event we decide to stop using Restrict Content Pro.

Why would the home page no longer load when Restrict Content Pro is not active?

Thanks for your help.

p.s. at present the dev site where the testing is going on, has Restrict Content Pro active and therefore the page loads.

The page I need help with: [log in to see the link]