Paypal

Hi

I purchased your theme a few years ago and am now trying to build a website with it

I have a problem with paypal

I have tried production and also sandbox and in both cases upon clicking the button to pay/donate/commit to project the page that opens is the main paypal.com page instead of the transaction page where I am supposed to use credit card or paypal account.
I have seen and followed both the tutorials on youtube but with no success

testing

you can try here

Please assist

Thanks