Buy button doesnt work

Hello. Im trying to purchase the software but everytime I hit the buy button in the demo, it just closes the popup window and takes me back to the guitar midi program. Are there any other ways to purchase the software? Or does anyone know why the buy button isnt working?

Thanks,

Dustin

Here is the shop:
https://sites.fastspring.com/jamorigin/product/midi-guitar

I tried to purchase MIDI guitar, but the shop doesn’t work. I paid thru Paypal but I didn’t recieve any confirmation

I just sent you an email.