If you need legitimate access or licensing help, I can instead:

Many modern Autodesk subscriptions use "Sign In" activation rather than serial numbers. If you do not see a serial number in your account: Autodesk 2022 Product Keys - Microsol Resources

Students and educators can find their specific serial numbers by logging into their Autodesk Education account Activation Methods for AutoCAD 2022 Find Serial Number & Product Key - Pentagon Solutions

If you have a legitimate subscription and need to reinstall: to your Autodesk Account. Locate AutoCAD 2022 under "All Products and Services."