Donate button linked to paypal account

Hello all, I’m creating an app for a non profit agency and need help connecting a donate button the the organization’s paypal account. I read a couple of posts in the thread but when I clicked on the link for a demo I got this error message:
We can’t find this profile
Make sure the link’s right or hasn’t been turned off.

Have you tried a link?

I think PayPal changed something I’m with the links. I am having the same problem for about 2 months now. I even started a thread a while back but didn’t get a response.

Thank you for responding.