Ad is giving an error while is being configured:
The problem is, that banner is not showing inside revive ads on opensubtitles.org
it is requesting Request URL: https://syndication2.opensubtitles.org/native-settings.php?idzone=2985500
this URL DOESNT exists
http://www.opensubtitles.org/addons/exo.html however here it is working.
Tested on another server it displays correctly and even a preview is shown.
Revive Adserver v4.1.3 running on both servers
What can be wrong?
Already reported here: https://github.com/revive-adserver/revive-adserver/issues/969