NEED HELP with The Heretic VFX Character

Hello There,

I recently downloaded the The Heretic VFX Character demo project from the unity store however it has come with all kinds of errors and issues. I am new to Unity but would really like to use this project.

I have reached out everywhere I can and no one has been able to help me. Whenever I try to play the demo the main character Morgan is not showing up.
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There is also multiple errors constantly showing up and I have no idea how to fix them please see a screenshot of the error below. I have been able to fix most of them but I still keep having the same issues.

Any help would be most appreciated.

This is not answer I was having the same problem with The Heretic: Digital Human Shader in version higher then 2020.1.17?

https://assetstore.unity.com/packages/essentials/tutorial-projects/the-heretic-digital-human-168620#description

I been buidling my game with this skin shader and I want to us the KWS Water System (HDRP Rendering) https://assetstore.unity.com/packages/tools/particles-effects/kws-water-system-hdrp-rendering-205007

but this asset only works with 2020.3.1

if you can help i dont mind paying for this update.

thanks
Kory

My work

https://www.youtube.com/watch?v=c4HzQ2xpCmM

https://www.youtube.com/watch?v=26QNTa8uM2w