Well I download a new mod call hyfa furniture on my Minecraft beta and it's active but it's not popping up or showing up when I'm trying to find it in the creative mode

I download a mod but it doesn’t show up it says it’s activated but it’s not showing up whenever I search or Trying to find it in creative mode, some mods does work but mostly some of them doesn’t like the hyfa furniture one it say its active even though it doesn't