this one actually works to some extent, so thank you for correcting yourself on the raw & broken website from the main post, commenting from a twin account here
well, let's start with the thing that it gives a server-side exception and you already can't move past this initial step when just clicking on the main button on the homepage; this, apparently, might have something to do with <aianimegenerator.me/_next/static/chunks/575-cfa34c4cf2b3cbcb.js> at 3931-th position of the 1st line:
4 comments
[ 2.7 ms ] story [ 24.0 ms ] thread> (0,h.isNextRouterError)(t[0])||_.apply(window.console,t)},window.addEventListener("error",e=>{if((0,h.isNextRouterError)(e.error)){e.preventDefault();return}})