If the Tiny Print app is not opening and keeps shutting down, you can follow these steps to troubleshoot the issue:

1. Restart Your Device
Start with a simple device restart. This can resolve temporary glitches and refresh system resources.

2. Clear App Cache
Go to the settings of your device:
- Open Settings
- Navigate to Apps or Application Manager
- Locate and select Tiny Print
- Tap on Storage
- Press Clear Cache
This will remove temporary files that might be causing the app to crash.

3. Force Stop the App
In the same Apps settings:
- Select Tiny Print
- Tap on Force Stop.
After forcing it to stop, try to reopen the app.

4. Check for App Updates
Ensure that the app is up-to-date, as updates often contain bug fixes:
- Open the Google Play Store
- Search for Tiny Print
- If an update is available, install it.

5. Reinstall the App
If the issue persists:
- Uninstall Tiny Print by going to Settings > Apps > Tiny Print > Uninstall.
- After uninstalling, restart your device.
- Reinstall Tiny Print from the Google Play Store.

6. Check for Device Software Updates
It's also beneficial to keep your Android software up to date:
- Go to Settings
- Scroll down to System
- Select System Update and check for any available updates.

7. Examine Permissions
Sometimes, incorrect permissions can cause an app to crash:
- Go to Settings
- Select Apps > Tiny Print > Permissions
- Ensure all necessary permissions are granted.

8. Adjust Printer Settings
If the app specifically crashes when attempting to print, you might want to check your printer settings. Disable IPv6 or remove and re-add your printer on the device as seen in community discussions - learn more.

If after these steps the app still does not open, consider reaching out to Tiny Print's support for further assistance or checking for known issues with the app’s version on platforms like user forums - learn more.