As said in the very first sentence in the description, I'm not going to work on this game anymore, sorry.
You can play the original: https://spelunkyworld.com/original.html
this: https://store.steampowered.com/app/239350/Spelunky/
or this: https://yellowafterlife.itch.io/spelunky-sd
All those games probably have fewer bugs then my version.