For problems with a stream itself, the fastest route is the help route of the service or broadcaster carrying that stream, because they control the feed and the player.
For corrections to this site, such as a step that no longer matches reality, a broken link, or a download status that has changed, use the contact route on this site and describe the page and the step that is wrong. Clear reports get fixed first, because a site that drifts from the truth stops being useful.
When you report a download status change, include the official listing you found, so the change can be verified before it is published. Unverified claims are not published, even when they sound plausible.