Solution:
Verify the following solutions:

Uninstall and reinstall the Autodesk Licensing Service
Uninstall. See How to uninstall Autodesk Desktop Licensing Service.
Reinstall. See Autodesk Licensing Service download.
Reboot your Mac.
Start the software installation again.

Run the fixaccount script
Download the attached file fixaccount.zip.
Double-click it to extract the file fixaccount.sh.
Open Terminal (in Finder > Go > Utilities > Terminal)
Type:
sudo sh
Drag and drop the file fixaccount.sh into the Terminal window, the command will complete similar to:
sudo sh /Users/<username>/Downloads/fixaccount.sh
Press ENTER. You will be prompted for a password. Type your Mac password (no symbols are shown as you type, this is normal). Type it and press ENTER.
Run again the AutoCAD / AutoCAD LT for Mac install file.

Perform a Clean Clean Uninstall.
Follow the steps in the article How to perform a clean uninstall of Autodesk programs on a Mac.
Reboot the system.
Reinstall AutoCAD / AutoCAD LT for Mac.

This may help you,

Rachel Gomez