You have V1.37 per the screenshot. Outdated https://github.com/OpenBuilds/OpenBuilds-Fusion360-Postprocessor - download latest (V1.43 per the readme is latest) See docs:software:fusion360 [OpenBuilds Documentation]
Your main error relates to the version (old frequently asked question from folks that forget to stay up to date yes) The WCS thing is not an error just a warning, its a good habit to set the WCS otherwise it will default to G54 which is fine too See post #4 in Post Process - Fusion360
You posted the link yourself but, for now at least, you can also use this link:- docs:software:fusion360 [OpenBuilds Documentation] Alex.
Click the link I gave you above. Scroll down just a little and you'll see the Readme, which gives you a little changelog.
Thanks a lot for the help! I got it to work now just a little roughy when it starts to cut parts. The torch will come down and touch material then drag it across the material to the start cut position