Syncing eMC with Gmail?

Hi ,
I’m getting Error related to “resource name” and “people/[^” in my Gmail , which I believe I synced with my eMC account.
I have deleted all old email addresses in both accounts and now cannot find the syncing operation in the menu of the latest eMC version.
Also, when I try to add a new contact, the clients insist that I include a tag. Something I’ve not done before.
I should be most grateful to anyone who can give me a
few pointers.