Issue with lemmy.world/c/tabletopminis

So I found a community I wanted to join (https://lemmy.world/c/tabletopminis@lemmy.world) and I hit subscribe but it just has the subscription pending. I also tried to access it with just https://lemmy.world/c/tabletopminis but I get a 404.

I also have an account on another instance and I can't seem to search for it. The link https://programming.dev/c/tabletopminis@lemmy.world just gives the same 404 I got above.

Is this because of the way the community was setup? I didn't see anything on their page that mentions requiring approval for subscriptions.