@Freddy2001 Could you provide a link, or let us know what steps you took leading up to this error? This works for me: http://xtools.wmflabs.org/adminstats/meta.wikimedia.org
This is what I see using this link.
@Freddy2001 Using this link? https://xtools.wmflabs.org/adminstats/meta.wikimedia.org
GET /adminstats/ is wrong, which is my mistake. I needs to be /adminstats (without trailing slash). There's no 404 then.
Got it. We can take care of that! It is supposed to work with or without the trailing slash.
For reference, we came from https://meta.wikimedia.org/w/index.php?title=Tech&oldid=17263651#Admin_activity_tool
Sorry, saw your message just after that.
Fixed with 190d9b8 (but not yet deployed). Thanks