" Unfortunately: Phone has stopped" message on receiving calls.

[vasanth gopi]

I am always getting the " Unfortunately: Phone has stopped" message on all Incoming calls. I tired clearing the cache & data on "Phone" & "Dallier" apps, still i could see this message. Also tried in Safe mode. But bad luck, I end up with the same issue. On clicking "OK" in the message the call gets disconnected.

Please help me to resolve this issue ASAP. I am using Moto G2 (Lollipop)