On the first level in the game I can't find out how to do it. The only way I can push the box is into the lava and when I push it into the lava it sinks and I fall in the lava. Am I stupid or is the 1st level impossible?

Also the website that's linked doesn't work

Hi, the website is working normally for me, also for 1-1 try to wait a bit after putting the box in the lava, for me the 1-1 works normal

Oh the game only loads on mobile

11 months late but i figured it out: it's refresh rate, doesnt work on 144hz but does work on 60hz. probably the single weirdest thing i've seen refresh rate fuck with