Seems like it's still in development. I made a criticism a few days ago and the OP came back saying they changed it for me. You're right though, the one I did yesterday had an error too, and I couldn't figure out where the report form is

Einstein riddles are my favorite kind of mobile game, so I'm always happy to see new ones tbh

Edit: there's a ton of errors in today's. I wonder if changing the names to alphabetical introduced a bug