Upfront hanging on loading

Thought I would have a play around with the Upfront/Fixer theme this evening and each page I try to edit the load time (with the long loading time warning) it literally does not load at all. Notice a few errors in Chrome inspector but not sure if these are fatal.. Can you please take a look to see if any server/plugin issues are causing this? I only have wpmudev plugins installed at the moment so I assume they shouldn’t be an issue.