What does this code mean

Could point to a camshaft variable timing solenoid failure, variable valve timing actuator failure, even wear on the timing chain or defect in chain tensioner. This is pretty common in engines that are run a lot with a very low oil level.

Yep Ed is right, this can get involved rather quickly so I recommend a professional have a look at it, now that doesn't mean a dealer but a certified ASE independent shop will be actually better than the dealer these days.