Need help for a tracker that I might have been rejected for inactivity

Hi, I just found out that I haven't been active on a tracker for a while (thanks to some seedbox problems) and that they might have disabled/deleted my account as I thought I was still seeding torrents from it with a new seedbox that had some trouble to transfer some of the torrents since last october. Now I would like to contact the tracker's staff, but unfortunately, I can't make the their IRC channel to work with Hexchat. The tracker in question is HD-Space.

Any chance that someone here knows how to make hexchat (or any other IRC client) work so I can contact HD-Space's staff ?

Thanks to answer.