i have red now some topic where the sulution is to use files from addon mannager 2.9.0.4. Whats about that? Do you have them ?
You still don't understand what your problem is.
It seems you think it has something to do with "activation" somehow, or a problem with the software not running correctly, when I've clearly said your problem is entirely different.
The other posts about using an older version of the Addon Mananager didn't had *anything* to do with this, and it was the Addon Manager crashing, because the user (after launching another product installation even non flight-sim related) had an issue with the VC++ runtimes libraries.
Your problem doesn't have anything to do with this. Everything is running, but it can't find the Baggage Tractor. And, as I've said, the Baggage Tractor is one of the few vehicles that should ALWAYS appear, because it's not affected by mistakes in your airplane config (like misplaced doors) or other issues like wrong takeoff weight, wrong number of passengers, etc.
The prompt to reinstall the Addon Manager when you shouldn't have to, it's strange, because it might also due to a permission problem in your %APPDATA% folder, since the installer writes there the information that will tell to the Live Updater program when was the last time you updated the Addon Manager.
Try to remove the %APPDATA%\Virtuali folder and RECREATE manually.
Note that this will remove all your customizations, including airplane and airport customization. So, before removing it, you might want to SAVE the "GSX" and "Airplanes" folder that might be there into a different place.