Hello,
As "Grand Theft Auto" is not an Apple product, nor is it developed by Apple - we can only only help you to a certain extent.
Here are your options:
- Delete the app, and try reinstalling it from the App Store - if you paid for the app, you will be able to redownload it for free.
- Contact the app developers, explain your issue and details that they may require.
- Try shutting down the device, by holding down the On button until screen shuts down, then reboot it by doing the same process.
Kind Regards,
MrBeats