Manage Objects in Repository Explorer from Crystal Reports

I used to be able to Manage Objects from the Repository Explore without any issues. All of a sudden one day I get the following error when I click on Manage Objects:

" Action canceled

Internet Explorer was unable to link to the Web page you requested. The page might be temporarily unavailable.

-

Please try the following:

Click the Refresh button, or try again later.

If you have visited this page previously and you want to view what has been stored on your computer, click File, and then click Work Offline.

For information about offline browsing with Internet Explorer, click the Help menu, and then click Contents and Index.

Internet Explorer "

Does anyone know how to fix this?

Thanks