There's two possibilities. One is that another user found in the past the online version seems to have trouble with inner enums, so you could try moving the enums to top-level classes. But before you do that, I notice a peculiarity: the "RandyRandom$wishlist.class" file is wrongly named. It should be "RandyRandom$Wishlist.class". (Long story, but Windows is case-preserving while being case-insensitive, so this can happen if you first name the enum "wishlist" then later rename to "Wishlist".) Maybe try deleting RandyRandom$wishlist.class (make sure not to delete any Java files!) then in Greenfoot go to Tools->Recompile scenario and try uploading it again. If that doesn't work, instead try moving the enum to the top-level.

Thank you for responding, moving the enum to the top-level worked. I did not try deleting the wishlist file because I am on mac so I wasn't sure if your advice would work.