There appears to be a problem with the ASCOM connection to the camera. At
this point I won't be much help because I don't have the technical
knowledge. It may be worthwhile to uninstall the SX main drivers and the SX
ASCOM driver, restart the computer, and re-install both drivers again.
One thing I did notice in the log that may not have anything to do with the
problem...the SPG log says that it is trying to connec to "Starlight Xpress
Main Camera #2". Do you have more than one main imaging camera? In the
SGP camera chooser, do you have more than one SX main camera listed?