PayPal Error after selecting "Subscribe".

“The link you have used to enter the PayPal system is invalid. Please review the link and try again.”

How to recreate the error

(Support Access Granted)

Visit http://officeraid.MyURL.com/memberships/

Signup for a membership

Then attempt to do the PayPal checkout

Pre-support Research

The suggestions here

https://premium.wpmudev.org/forums/topic/the-link-you-have-used-to-enter-the-paypal-system-is-invalid

http://www.tipsandtricks-hq.com/forum/topic/the-link-you-have-used-to-enter-the-paypal-system-is-invalid-please-review-the-1

do not seem to work, but feel free to try them

Kindly FIX the problem and give me a brief report.

Thanks in advance,