Nested Resources Polymorphic/Redis

I feel very unclear about what is wrong with this. I followed the lectures regarding adding polymorphic associations, Redis, and Sidekiq and referenced the examples given, but it will not run. I don't want to submit it like this, but I am already behind on a couple of assignments and can't get behind more. It would be helpful if I were told what I did wrong rather than just be given the correct answer. I also messed up my merge with the previous nights work on the same file before I submitted it. Re-coding that this weekend is another thing on my list.