if you are lucky the problem will go away on its own you can always try to reload the app ... but I prefer waiting waiting may take several days until it starts working you might try playing on a PC AB works well with chrome and gameroom on a PC
If you get an error message that an app has stopped on your Android device. This is an issue on the device and/ or Google Play Store and not with the app developer.
In these cases, please check the Android/ Google Play support pages or contact Google Play Support directly for help.