Start here:
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When you have a basic mod installed, then go to the slightly more advanced ones... only when you know wth you're doing, go to kw. It's the absolute most complex, complicated, and hard to deal with mod -- and not for beginners.
But if you insist on starting with KW (congrats, you've passed the stubbornness test & might get it working), go read thru the info here, it touches the most common issues:
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In general, you'll find more actual help there than here.
(tip: on LL, just don't mention where you got KW from, even though the last patreon version was later released as a public version... their mods don't like ahem this type of site)
But, my reading of your post is that you don't even know the 1st thing about where to put mods for TS3, how to make sure they're working, or anything else, not that you just couldn't get KW running. So, make google, duckduckgo, etc. your friend and face it, you're gonna have to read
thousands of pages of information. Those of us dealing with TS3 for years have already done that -- and we expect noobs to learn to help themselves.