Apple has upgraded some security features in macOS starting with Sierra. Sometimes when you install an app that needs an extension to run it prompts you to open Security and Privacy preference and click the "Allow" button. BUT, apple has restricted that click to a physical click of the trackpad or mouse, so what if you're remoting into the Mac?
Here's the fix:
Download this script that will do the clicking for you: here.
Open the script with script editor (in the utilities folder).
Open the system preferences.
Open security and privacy preferences.
Unlock the panel by clicking the lock icon in the lower right and entering your credentials.
Move the whole window to the top left of your screen.
Click the play button in script editor.
The script will run and click the Allow button. You're welcome.