What does this error message mean and how can it be fixed? "unfortunately, home has stopped."

[AC Question]

What does this error message mean and how can it be fixed? "unfortunately, home has stopped."

While working on my LG4 phone, I get the message above and it then stops working.

 

[belodion]

Re: What does this error message mean and how can it be fixed? "unfortunately, home has stopped."

That is the launcher. Try first Settings, Storage, Cached Data, clear the cache, then reboot the phone.
Get back to us if no go.