After recent update of my Samsung Galaxy J7 prime the error message appears as 'IMS service stopped functioning' and after hiting 'close app' it goes. The message appears every time when I start my phone.

after updating to Naugat my J7 prime device is not charging properly. it is taking hours to recharge to 100%. So also battery backup reduced considerably. Earlier my J7 prime used to charge quickly with gr8 battery backup. plz help to resolve the iss...