Viewing 1 replies (of 1 total)
  • This error usually occurs when your payment details are incorrect on the Memberships > Payment Settings page. Make sure that those details are correct, and there is no whitespace surrounding them in the fields. If you are using PayPal Standard, you might want to check out this blog post as well.

Viewing 1 replies (of 1 total)

The topic ‘Security Header’ is closed to new replies.