an icon is always popping up when i go into a application on my iphone 5

Hey julionuno1,

Although this is an older article, the troubleshooting steps included are worth a shot to see if it resolves the issue:

To use certain services, iTunes must download and install an authentication token on the device. Because iPad and iPod touch do not require an active Internet connection to activate, these tokens may not be downloaded and installed during initial setup.

You can resolve this issue by verifying that iTunes has an active Internet connection. Use the following steps:

1. Open iTunes on your Mac or PC.
2. Verify that your Mac or PC has an active Internet connection by accessing the iTunes Store in iTunes.
3. Connect your iPad or iPod touch to your Mac or PC.
4. After the sync completes, verify you can access YouTube.

via: iPad and iPod touch: Unable to use YouTube or Push notifications

http://support.apple.com/kb/TS3305

Have a good one,

Delgadoh