Go to: X-Plane/Aircraft/X-Aviation/IXEG 737 Classic Plus/IXEG_user_prefs.txt
Open this file
Around the third line you should see 'use_avitab' and a numerical value. If it shows '1' as the value, change it to '0'
Save the file and close it
Start X-Plane and see what happens now
It's required for the one you're trying to run (BN-2T). By removing it you've disabled all the systems in the plugin, so your crash stops.
If you want help you'll need to upload a log.