The DTC indicates a short to ground on the pressure regulator control line.
Your fuel pressure is slightly high for idle (508-798 psi), but it looks like you are still above idle speed so that may be normal.
Resetting it and trying again shouldn't hurt anything.
Unfortunately, the repair listed most frequently is to replace the high pressure fuel pump, but your mileage is way low for that.
Has anything else happened? It could also be an electrical wiring or connector problem..
Sky NA 2007 Midnight Blue
Sky RL 2008 Carbon Flash - Naked