Hi There, Dave here from the Moz help team!
Unfortunately at this time our crawler isn't compatible with Server Name Indication (SNI), which appears to be in use on your site. In general, SNI is a totally acceptable security configuration, but our crawler simply isn't equipped to be able to handle these settings.
https://www.screencast.com/t/lddqo8gVOt2
The good news is that our team has been working hard on a new crawler that will support this configuration and this crawler is currently in its Beta phase. If you're interested in being a part of the beta testing, the link to the sign up page is here: http://goo.gl/forms/LCvL9Ix8JDHfbAvr1. Once you fill out that form, you will automatically be added into the Beta during the next round.
We will be rolling the new crawler out to all of our users once it's out of it's Beta phase, but I don't have an exact timeframe of when that will be at this time as it's still being worked on.
In the meantime, I apologize for the inconvenience and let me know if you have any questions or need any additional clarification.