How to sync Kinza

how does I sync my settings in Kinza?

Every time I click “turn sync on”, it takes me to google account sign in page, and after I duly sign in to google account using my google username and password, it comes back to kinza but there is no sync on, it is still showing turn sync on, and doesn’t show any google sign in there.

I have done it 10-20 times.

Thanks.