Help! Newbie Confusion - Compile errors DINN - BASE.fx

Hi there! I really hope someone can help me. This is all very confusing and overwhelming for me.
I took a break from FFXIV before the whole GShade thing went down, and now I'm coming back to find a whole new world with ReShade. I was never really savvy with GShade, I don't use it during gameplay, but I love GPose photography, so I was able to manage to get GShade to work and take the screenshots I wanted with some really nice shaders. Now that I'm back and caught up in game, I wanted to get back to Gpose. I've got ReShade 6.0.1 downloaded, installed, and running in the game. I downloaded some shaders, but I keep getting the same 3 red failed to compile errors when loading them in game. I tried troubleshooting on my own, but I am not very tech-y and all the tech language has me really confused. Can someone with a lot of patience help me figure out how to fix them? I just want to take pretty screenshots! :'() They show up as:
[DINN - BASE.fx] failed to compile
[DINN - DIFF.fx] failed to compile
[DINN - GAUSS.fx] failed to compile
These files are all in a folder within the Shaders folder. When I mouseover the red error I see variations of the following specific to each error: C:\...\game\reshade-shaders\Shaders\SomeEffects\DINN - BASE.fx(21,1): preprocessor error: could not open included file 'shared\cImageProcessing.fxh'

A search of my entire computer turns up nothing remotely close to this file. 
What do I do? How can I fix it?

Please help!
Hopeful smiles,
Mimz
 

I had the same problem. Cshade is required, so re run ReShade and install that fx pack.
Whenever you have issues with a fx, click the link on the name of the fx pack during install. It should take you to Github. You can see solved and unsolved issues others are having on the Issues tab. Sometimes, requirements are listed like so.

Cshade is required for blurring functionality

github.com/AnastasiaGals/Ann-ReShade