NOF XII - PayPal not working, not publishing correctly, local or online

I have used NOF since v 3. In one of the versions I started using PayPal.

It stopped working in this v XII a year ago. I didn't need it until now as I moved a lot to my blog.
I have added the e-commerce cart as both a new profile and as the original profile with the same results.
I add some items to the catalog editor. Press done. It closes and only shows a green frame for a box that looks empty.
Double-click it and it reopens the catalog editor
I publish complete and changed assets only and the website shows this:
On the e-commerce page there is a big blank nothing.
If I go to the PayPal page (which usually isn't navigable) and it shows the 3 arrows: left, right and up.
Left and right do nothing. Up arrow goes to the page with the non-existent cart.

In looking for solutions, I found nothing in the help or anywhere except a few problems in this forum. One suggested to local publish then FTP it to the site.
I did a local publish of the page and it is the same results.
I did a full local publish and get the error in the attached jpb. This stops the publishing.
Attachment 2784
The error is trying to create an invalid directory if you look at the string.
So confused...

Any help would be appreciated.