Sorry that you are experiencing this issue. Are you able to create a new (test) scribe, add a single image and try publishing that to your camera roll? This will let us know if there is an issue with the in-app purchase or an issue with the other scribe you are trying to publish. If the test scribe works it may suggest that there is something wrong with the other scribe that is causing the rendering to fail. If this is the case, please save a copy of your scribe to your online directory (cloud icon), let me know the name and I can take a look for you.
If the test scribe does not work either, let me know and I will advise what to do.