Google contacts Coworkers sync problem

When I start eM Client or try to update my Google contacts, I get the following error:

[Google Contacts] Creating or updating folder ‘Google/Contacts/Coworkers’ failed due to the following error: Execution of request failed: https://www.google.com/m8/feeds/groups/mark.simms.63%40gmail.com/full/f (Cannot update a system group)

Does anyone have any idea what is causing this. I do not have a Coworkers tag in Google, but even if I create one, I still get the error message.

Try here:

Also, check here to see if you have system groups defined. Gmail System groups are a legacy of the old Gmail GUI (Graphical User Interface) apparently.

http://www.google.com/contacts_v1/u/0