500 internal server error when trying to print svg from metrics graph
https://metrics.torproject.org/userstats-relay-country.svg?start=2016-12-01&end=2017-10-24&country=ae&events=points tells me "Oops! Something went wrong here! We encountered a 500 Internal Server Error when processing your request!"
I assume some backend thing is down. So (a) we should get it back up, and (b) we should figure out some way to automatically recognize if it fails again.