I don't know if it's possible to implement, and my apologies if others have mentioned it, but when bunkr returns the short "file unavailable because site is under maintenance video" for a download, it would be amazing if the script could somehow tell the difference between that and a successful download, and not add the link to its history file as a successful download.
I don't know how you would do that without false positives, though, unless you do some sort of hash check on short files. Or unless bunkr redirects to a specific url or unique filename for that under maintenance video.
I dunno, I probably wouldn't bother with it if I were you, but it would be a cool feature to have.
*And I suppose it's possible the whole point of bunkr returning that under maintenance video is to prevent auto downloaders from constantly retrying on unavailable files.