Young man, you must go to this forums site @https://www.mcfoxcraft.com/threads/youtube-rank-requirements.2247/ and see if you have the requirements. If you do, private message the owner (Cloakfox) about it.
You must have at least 5 videos on YouTube of you playing on the Foxcraft server (No more than 3 months old) as well as at least 150 views on each of those videos.