What is Microsoft Flight Simulator: Add-on Support for?

You would need to contact the developer of the third-party add-on for Microsoft flight simulator in order to get support

aits so they can update the store without having to update the game.

Hi, I hope you're doing great out there. I am an Independent advisor and I am here to help you with your concern.

As I have checked the description for the license, according to Microsoft Store:

"Provides additional functionality for Microsoft Flight Simulator on Xbox. Some Marketplace content may not function correctly without the Add-on Support installed."

Hello Afruzu how are you?

My name is Ezequiel I'm an Independent Consultant.

What appears when you try to connect your internet on your Xbox? Are there any error codes or warnings?

Yes you can play this game offline, however you need to download content from it so you can play offline.

1-Open "My Games & Apps" on the Xbox console by choosing the "My Games & Apps" tile on the Xbox Dashboard or by opening the Xbox Guide and choosing the "My Games & Apps" option.
2-Find Microsoft Flight Simulator in the "Games" section of "My Games & Apps". Note: If you are installing or pre-installing Microsoft Flight Simulator, the game will immediately appear in the "Games" section and you can do this during installation.
3-Open the Microsoft Flight Simulator "More Options" menu by highlighting Microsoft Flight Simulator under "My Games & Apps" and pressing the "Menu" button on your Xbox controller.
4-In the Microsoft Flight Simulator "More options" menu, navigate to the "Manage games and add-ons" option and open it.
5-On the Microsoft Flight Simulator "Manage Games and Add-ons" screen, highlight and open "Microsoft Flight Simulator" on the right side of the screen.
In the "Microsoft Flight Simulator" menu, navigate to and select the "Manage installation to (storage device)" option.
7-On the Microsoft Flight Simulator "Manage Installation" screen, navigate to the "World - offline mode" add-on in the Microsoft Flight Simulator base game. Note: Selecting the "World - Offline Mode" add-on will install it, while unchecking it will either uninstall the add-on or prevent it from being installed.
8-After making the changes, navigate and select the "Save Changes" option on the right side of the screen.
9-Your Xbox will automatically update the Microsoft Flight Simulator installation in the background.

https://www.windowscentral.com/microsoft-flight-simulator-xbox-offline-mode-pack

This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.'12

Please access How to maintain and update Microsoft Flight Simulator? – Microsoft Flight Simulator Support (zendesk.com) to know more about what can be done about your situation. If the issue still persists, it would be best to submit a request in the same website linked (top of the page) for further assistance.