If your CrimeDoor app is stuck on the screen to subscribe to the newsletter, even though you are already subscribed, you can follow these steps to resolve the issue:

1. Force Close the App:
- Double-tap the Home button or swipe up from the bottom of the screen (depending on your iPhone model).
- Find the CrimeDoor app and swipe it up to force close it.

2. Restart Your Device:
- Power off your iPhone by pressing and holding the side button along with the volume button until the power off slider appears.
- Slide to power off, wait a few seconds, then power it back on.

3. Check for App Updates:
- Open the App Store and tap on your profile icon at the top of the screen.
- Scroll down to see if the CrimeDoor app has any updates available. If it does, tap "Update."

4. Reinstall the App:
- Press and hold the CrimeDoor app icon until it starts to jiggle.
- Tap the 'X' or "Remove App" to uninstall it.
- Go to the App Store, search for CrimeDoor, and reinstall it.

5. Clear App Cache:
- Unfortunately, iOS does not provide a direct way to clear app caches. Reinstalling the app (as mentioned above) is the best workaround to ensure any cached data is cleared.

6. Sign In Again:
- After reinstalling, sign into your CrimeDoor account to see if the issue continues.

7. Contact Support:
- If the app continues to be stuck, reach out to CrimeDoor support directly for assistance. They may have additional troubleshooting steps or a solution tailored to your specific issue. You can usually find contact information within the app or on their official website.

Users have reported similar issues with the app getting stuck at the subscription screen, suggesting that this might be a common problem that the developers are aware of and may address in future updates - learn more.

If you continue to experience difficulties, consider checking forums or user groups for any recent discussions on this topic.