None of the buttons do anything, I can switch tabs but that's it. I also "have x break points"
Looks like something went wrong, no idea what. The easiest way to fix it is probably just to delete your savefile and try again. You can do it by pressing F12, go to the storage tab, then local storage. There you should see all the savefiles for itchio games you've played. Just right click and delete on the ones named "lightSpeed"