I already own the game and am trying to move it to my laptop but it keeps giving me the demo version

I got a new laptop and I'm trying to reinstall Minecraft java but the site just keeps handing me the demo when I already own it! What gives? I just want something i payed for back and move it to my laptop

 

update: i am not getting the demo now that i transferred my app data for the game from my potato of a pc and that has fixed my problem