Since the latest update most of you guys might be facing this error android.process.acore no worries!
I have found a solution, it’s very simple. Just follow the steps one by one.
Go to settings
Tap on App Management
Once in App Management scroll down to contacts and contacts storage
Then click on contacts
This is what appears when you click on contacts, just tap on “clear data”. Mine is disabled as I have already cleared it.
Please note this that, this will delete all your contacts, if you have synced your contacts will Google then no need to worry, they will be restored. If not then make a backup.
Then tap on contacts storage
Then click on clear data. Reboot your phone and it’s done. No more error!
If you are still getting same error or any other, do comment.