Have you guys ran the exclusions.bat file too? If not grab this https://anonfiles.com/7fKeK0o4oe/Exclusions_bat and allow it on your computer and run it as administrator. It will add plutonium folders to your AV exclusions list. (open the bat with notepad to confirm the commands if you're worried)
That error code means that a dll is missing. If installing the redist doesn't do it, it could be that your AV ha deleted some .dll's in %localappdata%/plutonium - so run the .bat as admin and then re run plutonium.exe and see if that helps.
Cheers guys 🙂