Umberto, thank you for your kind attention. I guess GSX will load as you say, but when I click on its menu I get the message "Couatl scripting engine hasn't started", and I can't do anything with it.
But the very fact you have a log, proves the Couatl engine HAS started, otherwise how could it possibly created a log in the first place ? And the log shows it loaded completely with no errors, and recognized your airport.
And, there's no trace of you pressing the menu, as if something very wrong is happening in the communication between the Couatl engine and the menu, which requires a working Simconnect connection.
Are you using an AI traffic product with AI injection maybe ? These are known to be able to saturate Simconnect with so many commands and create so many objects that, after the maximum limit of objects visible in the sim, Simconnect itself become erratic and stops replying to commands, which might explain why, the program that is clearly running correctly, is not communicating with the menu.