Graal closing

[pooper200000]

Graal has been closing up on me whenever I am in an activity and it says ," Graal the whole name needs to close right now we are sorry for any inconveniance and then it closes automatically. What should I do?

heres a pic of it it did it a thrid time in arow It just hapened again 4th time whats wrong?make that 5th im posting here eery time it happens all im doing is killing on sog! 6th time 7th time 8th time