OK, I can see from your latest Log.txt file that the custom airport scenery files have been removed, but still your version of XP11 crashed in exactly the same place?
The next thing to look at therefore will be your plugins, as these files can be notorious for causing problems. I can only suggest therefore that you move each plugin, one at a time, out of the XP11 file structure temporarily, to see if this makes any difference?
If this fails, then I would leave the airport custom scenery and plugin files where they are for i.e. saved somewhere safely and download a completely fresh copy of XP11, just to get it running properly.
Then you can start adding custom scenery and plugin files back in later.
Sorry, not sure what else to suggest?
PS I can see from your Log.txt that your CPU, GPU, RAM hardware and operating system all meet the minimum requirements, but could you just confirm the wattage of your power supply unit (PSU)?