It looks like AppCentre
can't handle that kind of user interaction
That message was a normal user interaction asking if you accept the change from Google Inc
to Google LLC
in the repo's config
Anyone using apt
through terminal could answer that without any issue but if the GUI, in this case AppCentre
, wasn't able to and by default treated like an error you see that message. A wrong message because was not an error, the error is on AppCentre
To continue without that message, open a terminal and use this command
$ sudo apt update
there you'll be asked the question I told you above (Yes/No question).
Answer Yes
and then you can continue using AppCentre
as usual
There's no need to remove Google's repo, there's no problem there. Also because this isn't an error you can install Chrome back safely if you want/need
I also recommend you to report the error on AppCentre
's Github page
https://github.com/elementary/appcenter/issues