As per your log you have several problems here:
1. You are running RTH (Real Terra Haze). This script for flywithlua works for xplane 10.45 but is not compatible to xplane 10.50. The developer no longer supports it.
Remove all RTHxxxxx.lua scripts from you flywithlua scripts folder to stop xplane crashing.
There are some guys who figured out how to modify the scripts to make it work, you can try that. I strongly suggest you to remove RTH scripts first and have xplane stable again before adventuring to modify scripts.
2. KSFO (San Francisco) scenery you installed requires some libraries to be installed as well specified on the instructions. As per your log xplane is showing you a screen pop up to warn you KSFO may not look correct.
xplane is complaining that some autogate jet-steel objects are missing. So, you have not installed required libraries or they are installed but outdated.
3. plugin FJCC_x737FMC is having tons of problems. You should remove this plugin until you have a stable xplane working before putting more stuff into the mix of issues you have.
Non of your issues are related to the ixeg 733 itself