If you are facing issues with the Jack in the Box app or website where it won't let you place an order after selecting your location, follow these step-by-step troubleshooting methods:

1. Log Out and Log Back In
Sometimes, your session may have issues. Log out of your account on the Jack in the Box app or website and then log back in. This can refresh your session and may resolve the issue.

2. Clear Cache and Data
If you are using the app, go to your device settings, find the Jack in the Box app, and clear the cache and data. This can remove any temporary files that might be causing the problem.

3. Reinstall the App
If clearing the app's cache didn’t help, uninstall the Jack in the Box app completely and reinstall it from the Play Store. This ensures you have the latest version of the app and removes any potential bugs that may exist in the current installation - learn more.

4. Check for Updates
Ensure that both your device's operating system and the Jack in the Box app are up to date. Sometimes, compatibility issues can arise from using outdated software.

5. Try a Different Browser or Device
If you are using the web version, try using a different web browser or device. This can help identify whether the issue is specific to your current platform.

6. Check Location Availability
Verify that the selected location is currently accepting orders. Some locations might be temporarily closed or have limitations on delivery - learn more.

7. Review Network Connection
Ensure that your internet connection is stable. A poor connection might hinder the order process. Consider switching from mobile data to Wi-Fi or vice versa.

If the issue persists after trying these steps, there may be a broader issue with the Jack in the Box system. Contact their customer support for further assistance.