In case someone else has the same issue, serveral things I tried in combination and maraculously it worked!
1, changed fore mentioned file line 1607
2, in the same file, also changed what's suggested in this post
https://www.zen-cart.com/showthread....l-account-quot
3, in zencart admin, deleted existing pp express module and reinstalled it
4, in pp account profile, my selling tool, web preferences, paypal account optional - set to off, save and then set it back on and save
5, slept over night
Not sure if all were relatevent, but I woke up in the morning, maracle happened.
My site is now taking CC as guest, no strings attached!
I assume, in the process of setting things on and off, reintergrating pp module triggered some setting while communicating with PP.
Thank you all for helping!
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