They had someone participate in the beta season and won a territory there. I don't remember who.
But it's not surprising that they're nowhere to be seen right now. Their Clan War Rating is 0, too, so maybe they haven't played at all. DARKLORDS is a graveyard (see: https://www.warzone.com/Forum/528679?Offset=9
Among nearly 700 members now, only 4 are really active.
Would you be surprised if a 4 member clan didn't participate in Clan Wars?