This reply is only about the error you highlighted, about the NormalizedEngineRpmS
And what I can say about that is: Ignore it. (Or stop using a custom damage panel, aka no timers for repair and such :( )
It's the damage panel being a whiny brat because you're using a custom one, that doesn't include 9.14's new RPM guage, showing when the tank shifts gear and what not.