Display a friendly message instead of an error when clicking on History after having created a new page

Create a new page and go to History.

Result: The following error will appear: "Error number 4001 in 4: Error while parsing velocity page Wrapped Exception: Failed to evaluate content with id []"

Suggestion: Displaying the following (or a similar friendly) message instead of the error: " You need to save your page in order to see its History".