If the Android app won't open or crashes, follow these steps: 1. Reinstall the program. To uninstall an app, you need to touch and hold it, and then drag to remove it to the top of the screen. After that, you need to install the program on the UNIBET apps page. 2. Restart your mobile device. 3. Check for Android updates. Updating systems make improvements to the system; they are able to fix the problems that have appeared.