Flashing red oil light

I do not know about the inspection.

It is a warning about your oil (which is the life blood for the engine)

But it sounds like you either have "low or no oil" (check your dipstick)/ worn engine with low oil pressure/ This may also have been triggered by using the wrong grade of oil during your oil change/ or maybe your oil sending unit is defective (sort of sending false readings- replace the sender)

The Medic