So... I didn't have my iPad available to me, and I was too lazy to type on my iPhone with my fat fingers, so I decided to use the forum on my laptop. I found a project that looked cool so I tried to check it out. The web version of the Hopscotch player was loading for about 30 seconds, and this happened:
I tried to reload the webpage 3 times. Nothing changed. I decided to try playing other projects, but they didn't load. I waited a few hours, and it still said that. My wifi connection appeared full, so it most likely wasn't that, so I think it's a web HS bug on a desktop.