No bepinex folder in game directory

[briocheman21]

I can only find the plugins folder and the fix doesnt work when installed here

[vertigomaster]

BepInEx needs to be installed manually; it is not included in this mod. The readme includes links to it https://github.com/Sauler/MouseFix/blob/master/README.md

Ah, that link is broken. Repo for BepInEx is currently hosted here:
https://github.com/bepinex/bepinex
installation instructions here https://docs.bepinex.dev/articles/user_guide/installation/index.html

[vertigomaster]

After BepInEx has been installed and correctly placed, you'll be able to place the MouseFix.dll from the Releases page.
Final path should look something like:

...\Car Mechanic Simulator 2018\BepInEx\plugins\MouseFix.dll

Hope that helps!