Does your course have in-class lessons?
The booking system for in-class lessons scheduled from October 5th, is available on the EasyAcademy website, at the first useful link.
For the access to the UniGe buildings from 28 September to 5 October, the procedure you have used so far (paper, Aulaweb, etc.) is valid.
To learn more about the Covid-19 teaching plan, please visit the dedicated page of your Course of Study at the second useful link.