Trap Code Particular not Showing After Effects

Hello,
I have just purchased the TrapCode Suite that has the Particular Effect I want to use from RedGiant by Maxon. I was going to use this in Adobe Effects that I have on my Mac (as seen in attached, I have the Version 22.6.0 of After Effects).
However, when I click on a layer and go to Effects - RG Trapcode (as instructed in tutorials), the Particular effect doesn't appear.
Do you know why this might be/ how I might be fix this? Is it because I have too old a version of After Effects or because I have missed a post purchase step?
Thank you in advance!
Kind regards,
Alannah
