[2019] RS3 Mobile App Crashing

So recently I've been using the mobile app on my Galaxy A3, and has been running smoothly. Every once in a while doing a slayer task, for no apparent reason the app crashes and takes me to the home screen on my phone. Bossing is far worse because it crashes almost every other kill or randomly at around 3 minutes.

I don't have anything running on my phone, and use my data to play the game. Is this an issue on my part that can be fixed?