Hello , I'm new to andriod and I'm using HTC desire c . I moved all my user apps to the sd card using Titanium Backup , and now none of them work .When I open viber , It gives me this massage " unforunately, com.viber.voip has stopped" . And some apps say "application is not installed" . I tried to move them back to internal stoarege but nothing happend . Is there anyway to fix this , or should I factory rest the phone ?!!!