Because the invite doesn’t work, I can’t see the server’s name, purpose, or community details. That means a proper “looking into” blog post isn’t possible without guessing or making up info, which wouldn’t be helpful or accurate.
on the URL you shared, the Discord invite link ( discord.com/invite/d4fybbfzgg ) is — it either expired, was revoked, or requires special permissions to join. The page shows “邀请无效” (Invite invalid) and “该邀请可能已过期，或者您没有权限加入” (The invite may have expired, or you don’t have permission to join).