Hass.io not loading frontend (0.75)

So, I’ve had a successfully working hass.io instance for some time now; but out of the blue the frontend now does not appear to load. I updated to 0.75 this week and it was working fine after the update. But today, I get no frontend.

In my log file, there aren’t any errors just a couple warnings about things taking over 10 seconds. I’m not sure what’s causing this but it seems like it is just booting incredibly slowly (like > 45 min). Any help would be awesome. This is my log file:

2017-11-29 20:49:26 WARNING (MainThread) [homeassistant.setup] Setup of sensor is taking over 10 seconds.
2017-11-29 20:49:26 WARNING (MainThread) [homeassistant.setup] Setup of binary_sensor is taking over 10 seconds.
2017-11-29 20:49:26 WARNING (MainThread) [homeassistant.setup] Setup of media_player is taking over 10 seconds.
2017-11-29 20:49:27 WARNING (MainThread) [homeassistant.setup] Setup of switch is taking over 10 seconds.
2017-11-29 20:49:31 WARNING (SyncWorker_7) [homeassistant.components.emulated_hue] When targeting Google Home, listening port has to be port 80
2017-11-29 20:49:36 WARNING (MainThread) [homeassistant.setup] Setup of tts is taking over 10 seconds. 10 seconds.

I blanked out the vast majority of my config file, and it appears to be at least loading the front end now. I have noticed that when I attempt to navigate to my DuckDNS domain (uses SSL), I don’t get a visible frontend. But if I go to http://my.local.ip:8123, then it works fine. So I’m guessing it’s got something to do with the DuckDNS add-on not being configured correctly…

Are you navigating to httpS for DuckDNS?