The Scary Teacher 3D app may not be working because of some issues with your device or your internet connection.
You have to follow all the instructions carefully to fix the error.
1. First, you will need to enter into the App info and choose to Force stop Scary Teacher 3D app.
2. Then open the phone manager app and free up some Internal & cache memory.
3. After that, update the game app and play it using the play store/App store.
4. You have to give the required storage permission by selecting the “Allow.” option.
5. Then click on clear data for the app and select “Clear cache”.
6. Now you need to restart/reboot your mobile device.