If you subscribed and downloaded it then when you load up ark on the screen that shows your mods it's probably installing. There's a little info on the bottom right of that screen that would say if it is installing or installed.

it is installed, and i can see it in the mod foulter on the computer. but i just cant seem to add the mod to the game :/

I assume you know that you need to click the arrows that look like >>> after you select the mod you want to use then?

Yes thanks xD but it is not appearing on the list