Hi!
The "Analyze Issues by Page" section actually just says that we didn't crawl that URL, not that it throws a 500 so there isn't an analysis we can provide.
http://screencast.com/t/4dY8SZBs
You can wait to see if that page is crawled during your next weekly update or run a crawl through the Crawl Test tool (in Research Tools). Crawl test will give you an analysis of up to 3k pages. There is a chance it still won't be crawled, but it is a way to get updated diagnostic data before the next scheduled weekly crawl.
There was one 500 reported in the crawl and I can confirm it's still throwing that error, but it's a completely different page. Hope this helps clear things up!