My Android Application reads shared calendar (public calendar). It worked six months without problems.
From two week, users (guest) receive 404 Not Found Error. Owner's calendar use the app without any problems.
So i think that property of sharing are changed. Any ideas?
Also, how can get more info about 404 - Not found error?
App is this --> https://play.google.com/store/apps/details?id=airbookingapp.hairbooking
It's only in italian but if you selct "Only for debug" salon you can get the error!