You must have a Samsung android phone. That looks like the TouchWiz launcher application. I'm not sure what to suggest though.
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
Worst case is to do a factory reboot. Here is the info from the user manual:
Use Factory data reset to return your phone to its factory
defaults. This setting erases all data from your phone, including
Google or other email account settings, system and application
data and settings, and downloaded applications. It will not erase
current system software and bundled applications, or files stored
on an installed memory card, such as music or photos.
1. From the Home screen, touch Menu ➔ Settings ➔
2. Touch Factory data reset, then follow the prompts to
perform the reset.