[Mesh] HTTP 502 (bad gateway) error on http://map.sudomesh.org/

Grant noticed, and mentioned via Signal, that the map on the website ( https://peoplesopen.net/) is down (HTTP 502 Bad Gateway error). Does anyone know how to fix that? At the moment, the main link on our site (i.e., 'JOIN THE NETWORK') points to that map, we probably want that link to work, especially considering our workshop this weekend. Sierk