First of all, sorry for the English, but I’m Brazilian and I don’t speak fluent English and I’m using a translator. 
( I can’t include all the step-by-step images because it only allows one image attachment per post.)
Hi! I was having the same problem. But I managed to solve it by fixing the DCVK 2.7.1 files available on the GitHub website. https://DCVK%202.7.1%20GitHub You only need to download this first file called dxvk-2.7.1.tar.gz
(9.83 MB)
In addition to downloading the files and extracting them using WinRAR, I needed to follow another guide in Portuguese https://www.clubedohardware.com.br/forums/topic/1702523-tutorial-instalação-do-dxvk-para-jogos-no-windows/ (but you can just translate the page 
) to copy and paste the correct files into the game folder.
Because after downloading the DXVK 2.7.1 file, you need to extract it using WinRar and copy the d3d11.dll and dxgi.dll files located in the x64 folder to the folder where the game executable is located (since mine is from Steam, I just need to use the option to browse the game’s local files). Note: only copy the two files I mentioned above into the game folder. Because the game No Rest For a Wicked runs on DirectX 11 and uses a 64-bit architecture.
After copying the two files to the game folder, you need to create a text document and rename it to dxvk.conf, and remove the .txt extension from the end of the name. And insert the commands available in the Portuguese guide.
Just copy the list of commands available in the Portuguese guide.
After that, I ran the game normally through Steam and it worked, although there might be some FPS drops. But the game is in early access, and I hope they optimize it further so we don’t need all the things we did in this tutorial. 