A lot of people, me included, have had crashes with xplane AI enabled. The developers are aware it has something to do with AI, it just seems to be really hard to get to the bottom of this problem and the devs say it's unknown if it's a problem with the TBM, xplanes AI or traffic plugins, or even a weird combination of all that.
Meanwhile I leave xplane AI off and just use the TCAS page to look for traffic injected by Live Traffic plugin. So far it's working for me without crashes.