contacts from google account

What is the best way to manage contacts with eM Client and Google.  I want to keep them synched between my google account (for my android phone) and my laptop running eM Client on windows 10.   I have created my accounts and have 1000’s of Contacts but when I try to clean up and delete some of them, I get the following error:

6:03:29 PM   MailClient.Storage.Application.OperationException: Creating or updating folder ‘[email protected]/Contacts/Family/’ failed due to the following error: Execution of request failed:[email protected]/full/e (Cannot update a system group)

Remove that account from eM Client, then add it again. See if there is any difference.