Original: Displaying the clock without there being an activated permit on our system could result in a parking ticket being issued.
Simplified: Displaying the clock without having an activated permit on our system could lead to a parking ticket being given.
Simplified: Showing the clock without an activated permit being on our system could result in a parking ticket being issued.
Simplified: Showing the clock without there being a valid permit on our system could result in a parking ticket being given