Hi, I could only look at your log.txt because I Don't know how to read crash reports. Maybe someone from Laminar Research will take a look at it later.
First of all, maybe the time on your computer is not accurate, but your log says it has been generated on the 26th of August...
The main thing I can see is that almost none of your addons are up to date. You should first fix that before asking for help.
Most of the time, crashes are caused by third party addons, and mainly plugins. One way to identify which plugin causes the crash, is to disable them, one at a time, from X-plane plugins menu and observe the result. It's a very long process that only you, can achieve. Sometimes you have no option but to uninstall them, which is the most reliable test. If you are able to identify the exact plugin causing the crash, the next step is to report the problem to its developer.
Another action can often miraculously solve problems :
Delete (or move for backup) the entire ...X-plane 11\Output\Preferences folder. This will clear all your settings, but often gives good results.
So, in the right order :
-Update all your addons
-Delete the Preferences folder
-Check if the latest beta solves the problem :
For that, in X-plane installer, tick the beta box. You can later revert to the latest stable version by running again the installer and unticking the beta box.
-carry out experiments to try and identify the guilty addon, then contact the relevant developer.
If this fails, you can then go the next step :
-install a second clean default copy of x-plane (by running the installer) and if the problem still occurs, file a bug report here :
Follow carefully the instructions.
More information about troubleshooting here :