Due to the privacy authorization setting of Mac 10.14 and above, user need to follow below step to allow driver access to the computer.

1: Click the “System Preferences” icon in the Dock, or choose Apple menu > “System Preferences”.
2: Then click “Security & Privacy” icon and click “Privacy”.
3: Click the “Lock” icon, input User Name and Password to unlock.
4: Click the “+” icon to add in the privacy list, go to “Application” and click “Macintosh HD”.
5: Go to “Resource Library/Application Support/Tablet Driver” and click “Open” icon.
6: Confirm “TabletDriver” is added in the privacy list and click “Lock” icon to prevent any changes.