Had a similar issue recently.
Basically you know when you have to sync Jetpack with a www.remarpro.com account? When it does that it saves the link to your website to your www.remarpro.com account for some STUPID reason.
Happened to me for a site I was working on locally. worked fine of course for me, but for anyone outside of our office, it was broken.
You will need to disconnect and reconnect jetpack to update the path.