A couple weeks ago I bought pico-8 to try and learn lua, but now I am stuck with the old version because it's not showing in my purchased products page. Any ideas? (I didn't use the weird 3rd party purchase save thing)

Hi everyone!
I got pico-8 yesterday and I am trying to learn lua.
for my first project I am trying to mod the raycasting demo to be a 3d platformer.
I got the running and jumping set to what I like, but I don't know how to set the map
so that it doesn't crash once it looks off the first screen in the editor. Any ideas?
I added a gif to show what it looks like. after the gif stops it means that my program crashes or
does not let me move, look, or jump in the game.