They shared a workaround which you may try now:
I tried this method for KS v9.0.0 on my Mac, and it worked.
Regrettably, @Elly_Tran wrote a file path
/Applications//Contents/Eclipse/configuration/resources/tools/webdriver/webdrivermanager-5.4.1-fat.jar
This path makes sense only on Mac. You yourself need to find out the appropriate path on Windows.