Automator "New File" workflow in Mojave returning “Not authorised to send Apple events to System Events.”
In System Preference/Security/Privacy/Automation after unlock you have to select Finder/System Events.
Then may be in Accessibility you can select Finder if you got an error.
There are some explanations : https://support.apple.com/guide/mac-help/change-privacy-preferences-on-mac-mh32356/10.14/mac/10.14