I have the same problem, and I can't use Xplane due to this crash. I was flying in Argentina, we are havinb bad weather at the moment. The error is when Skymaxx parse new metar data. I attach my files. I deleted the .rwx files and could start the sim, but It crashed again before I could change anything.
Excuse my grammar.
Regards!
Facundo
MAXX_METAR.rwx
METAR.rwx
Log.txt