Fundraising Plugin Not Connecting to PayPal

I just purchased the Fundraising plugin and have configured it for my site and the following error came up when I try to process my first donation:

"There was a problem connecting with the paypal gateway. (CODE)560029 The required X-PAYPAL-APPLICATION-ID header is missing from the HTTP request"

I am using the 'Advanced Crowdfunding' option in my settings.

I have searched the support forum and am at a lost and need assistance. I found the following link but all images are no good:

I also saw this post from this year but it did not offer any real guidance:

Thanks for the help.