Looks like you probably got into a weird edge case, the next release will stop the crashing in this scenario.
Anything involving user interaction, besides subscribing/unsubscribing from a magazine is on hold until the API is released and I can implement it. It's a glorified lurker app currently.
Thanks. I have been working on it since the initial Reddit blackouts, just was hoping the API would have been available sooner.
FAQs and info included on the linked post
Looks like you probably got into a weird edge case, the next release will stop the crashing in this scenario.