We still have an issue with Airbnb-bookings coming through Smoobu due to an error in the API-documentation. We are currently testing the fix internally before we roll it out.
General connection issue should be fixed after reconnecting once (keeping in mind the remaining one described above).
@gramels: What issues do you have with the Airbnb-integration (which should not be affected from the Smoobu-problem)? The connection issues we had there had a different cause (changes on their API which have not been handled correctly automatically).