Hi there! I'm sorry to hear that the Pilot Flying J app isn't opening for you. That can definitely be frustrating. Let’s go through a few troubleshooting steps to see if we can get it working again.

1. Restart Your Device: Sometimes, a simple restart can resolve app issues. Turn your device off and back on again.

2. Check for App Updates: Ensure that you have the latest version of the app. You can do this by visiting the app store on your device and checking for any updates.

3. Clear App Cache: If it still doesn’t open, try clearing the app's cache. Go to your device's settings, find the Apps section, locate the Pilot Flying J app, and look for an option to clear cache or storage.

4. Reinstall the App: If that doesn't help, uninstall the app and then reinstall it. Make sure to reboot your device after uninstalling.

5. Check for System Updates: Ensure your device’s operating system is up to date, as sometimes app compatibility can be an issue with older OS versions.

6. Contact Support: If none of these steps work, you might want to reach out to Pilot Flying J's Guest Services at 1-877-866-7378. They can provide more detailed assistance.

Hopefully, one of these steps will help! Let me know if you need more guidance, or if you've already tried any of these solutions.