The last couple of days I can't upload photos. I am going to update and see if that fixes it. I've only been using it and have been enjoying it so I wasn't even aware that I was missing on notifications and interaction once I started checking Primal.
Discussion
Could be due to issues with the media server you have selected. Try another media server?
Could also be due to unsupported photo format. Did it suddenly stop working or are the photos taken in a different way?