cant seem to answer incoming calls error message when ever i slide to answer call

[AC Question]

Dear Sir,
i have a serious concern with my Model Tecno H7 and Andriod Version 4.2.2.
I cant seem to answer incoming calls error message when ever i slide to answer call "unfortunately, the process com.andriod.phone has stopped"
Please how can i resolve this
Regards

 

[B. Diddy]

Welcome to Android Central! Try booting into Safe Mode to see if the problem lies with a 3rd party app. Most devices use the same steps as those for Nexus devices: https://support.google.com/nexus/answer/2852139?hl=en