Editing a wiki page failes for error 404


I’m trying to edit this page: https://wiki.openstreetmap.org/wiki/L%C3%BCbecker_Mappertreffen
After clicking the Edit link a progress bar proceeds to a certain point but then the breaks with this message: “Error loading data from server: 404: parsoidserver-http: HTTP 404. Would you like to retry?” No matter how often I retry I end up with the same message. Editing the page is impossible.
Is this something I can fix myself or the wiki team can handle?

Thank you in advance

It was discussed by the admins a couple of hours ago on #osm-dev and apparently should be working now.