Yes.
Unless the mod(s) are inactive on both the site and their social media links. In that case, you can use the Moderation Request Thread here in the The Site forum (sorry for no direct link, it’s annoying on mobile).
Inactive being at least three weeks, not six hours, either. And you have to try to contact if ways exist, and have an actual reason to need moderator for the game.
Sorry if this is a stupid question, but how exactly can you contact mods w/o twitter links or any type of direct link that you can contact them on?
Check their runs, their videos will usually be in YouTube or Twitch, and sometimes their YouTube/twitch profile has more info given to be able to reliably contact them, or just try to contact them on YouTube/twitch as well although not as reliable
If you can’t contact them anyway and they aren’t responding to posts in the games forums then that’s when you can request it since a mod that has no way to be contacted isn’t fit to be a sole mod.