Ok so your eM Client is a recent version 9.2.1735 and you have Windows 10 which should be fine.
Suggest then to next try Repairing your Gmail Contacts and see if that fixes the contacts sync error. That should re-sync it up with your Google Contacts online.
Failing i would next suggest if you use Gmail as a normal IMAP (Non Pop) account, to remove and re-add your Gmail account via the “Automatic email wizard” via “Menu / Accounts” and see if that fixes it.
Note:- If you do remove and re-add the account, backup first via “Menu / Backup”. You can see when the backup is complete in “Show Operations” via the dropdown on the right of refresh top left.