My samsung s5 wont answer calls when im in an app does anyone know how to fix it?

[Android Central Question]

When i am playing one of my games or am in facebook, and someone trys to call me my phone goes into this page that i cant get out of. It comes up with sorry your phone has stopped working. I have to wait until the called has hung up to take the battery out and start the phone again so i am able to call the person back. Does anyone know how i can fix this problem?

 

[Rukbat]

It could be any things - bad RAM, a bad Phone app, some other hardware failure. Find a good phone repair shop and have them take a look at it.