Can't complete actions - broken link

Looking at my actions
https://www.w3.org/2015/spatial/track/actions/29
https://www.w3.org/2015/spatial/track/actions/30
https://www.w3.org/2015/spatial/track/actions/31

The big link in the middle of the page is getting a 404, and 404s when I trim until I get right down to http://w3c.github.io bvut then I can't find anything readable.

Simon J D Cox
Research Scientist
Environmental Information Infrastructures
Land and Water<http://www.csiro.au/Organisation-Structure/Flagships/Land-and-Water>
CSIRO

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