Please restart your device and then start the application without starting any other application.
If this doesn't work, please try the following steps:
- First remove the application from your device
- Restart your device after the application has been removed
- Then download the application from the App Store again
- Restart your device after installation is completed
- Start the application without starting any other application
If you're still unable to start your application after completing the steps above. Please fill the out the complete support form (specify OS version, etc).