I already paid for the full version so is it just not available for download anymore?
It is still there! Did you log in to Itch before making your purchase?
Yeah I did and it shows up in my library under games I've purchased and I can download it I just can't install it
Itch has had some (unrelated) problems with its downloads recently; try redownloading? If you're on Android, please also check that you've got enough space to extract the app.
I have plenty of storage but I still can't extract it