Dear all,

I am using "SevenSpikes.Nop.Plugins.RealOnePageCheckout", but a few days ago it is showing blank page. No error, just nothing there.
Only can see this in developer tools:
<html><head></head><body></body></html>


If I watch the network in DevTools, and compare with the test site, I see the live site just stop loading.

More interesting if I say, the same code is working on our test site and on my PC in Visual Studio.
If you are happy to try it, please visit the
https://feedmark.com
and the 
https://test.feedmark.com

Put something in the basket and press the green Checkout button.  (you have to create an account) The blue PayPal Express is working.

Many thanks
Zoltan