ERR_CONNECTION_REFUSED in Wordpress

I have recently migrated my Wordpress site to a new host. Everything works smooth except pages generated by the plugin Paid Memberships Pro, that creates membership pages and subscription payment. The plugin generates all pages fine except the checkout pages that are hooked up to Stripe.

Trying to enter I get ERR_CONNECTION_REFUSED.

I am developing the site by having modified my DNS host file. This allows me to override the DNS for a domain, on a particular machine.

I have deleted and reinstalled the plugin. Rest of the plugin works. Same problem in all browsers and on different devices Should be no files pointing to the old site

Any suggestions for a solution would be very very welcome.

Thank you, Emil

via Chebli Mohamed