Cseries :: Can't Open / Uninstall Programs After Updating?

I have a nokia C7 and a few daysago I made ​​last updated Nokia Belle. So far so good, if not by mistake, I used the programand I tampered Xplore sis and in folders that you are confused. As soon as the phone hasproblems, I thought the hard reset would fix it and in part it was so, it was not for the fact that I can not access programs: Nokia store, Nokia maps, Shazam, Traveler, F -Secure, social, and probably others. I tried uninstalling Nokia store, but when I delete / uninstall nothing happens. Furthermore, the application screen is installed, all the others that work well are displayed with a red icon, while stores, social etc