Trying to make Toon Shader Material on UE4

Hello. I’ve been trying to recreate JvtheWanderer’s cell shader, but I keep bumping into problems. I recreated everything I saw in the pictures and then applied the post-process material to a post-process volume, but this is the result I get:

Here’s a few screens of my material:

I also tried removing ElliotB’s Custom Depth Debuffer, but then this happens:

Can anyone help me figure out what I’m doing wrong? Is there some component I’m missing?