Not just you, everyones having problems right now. I think it has to do with the aws outage they probably use their cloud servers or something. Amazon said services are coming back online hopefully...

Same mine stopped last night... seems like its not us its something wrong with them

@Erickcm same.... mine stopped some time last night, it saves to sd card and shows the activity but doesn't show on cloud and no notifications when anything is triggered so I have to manually check...