Google Calendar API problems in Appointments+

Hi,

We are having problems connecting the Appointments+ plugin to our Google Calendars via the API. We got it to work for some time, then it stopped working. We've gone step by step through the guide on each users profile page, creating the ID's, copying the service email address, sharing the calendar with it etc. etc. etc. , yet we are not able to get it to work.

Even our full time developer is scratching his head.

This is our last attempt to solve this problem, otherwise we will cancel the subscription and go elsewhere.

Please respond as soon as possible.

Regards,
Daniel Runarsson