Exception will be exit

[BigD77]

After a software update (18/2/2017) I get a messaging on my screen every few seconds saying "sorry ask exception will be exit" and it is driving me insane
Had no issues until this update
Please fix this issue

[BigD77]

Ps
I'm using Xperia Z5 premium

[BigD77]

Phone is now turning itself off at random!!!!!!