Exporting a game, but game isn't exporting everything

I already asked this question on stackoverflow, and no one seemed to know how to answer it, or just ignored it.
https://stackoverflow.com/questions/62342890/exporting-a-game-but-game-isnt-exporting-everything

If this question is answered on stackoverflow I will remove it from Unity. Also if this is not the right place to put the question, sorry about that.