The error message is inconsequential, since it reports an object with a missing model that, if called, won't show up. But, since that object isn't supposed to exists and the scenery is not calling it, the error is harmless.
However, if you run the FSDT Live Update now, it will remove the (unused anyway) object name definition from the PHKO SIM.CFG file, so even the error will go away. Nothing will change in the scenery: that object wasn't required and nothing in the scenery called it.