Hi, I've been using my phone without any problems I can use Viber, Whatsapp, Line, access my contacts but.... now I can't add a new contact, the "android.processs.message" appears again! Any suggestions, please!
Hello , I had the exact same problem couldn't access my contacts nor add a new one. And I tried most of the actions you proposed with no results.
Before full reset of the phone I was able to solve the problem without removing any app.
As Viber seemed to be the issue I entered Settings-Privacy...