Insider Build expiring my Windows 11

Here are the detailed steps on how to perform each of these solutions:

To run the Windows Update troubleshooter, open the Settings app and go to System > Troubleshoot > Other troubleshooters. Find the "Windows Update" troubleshooter and run it.
To restart the Windows Update service, open the Command Prompt as an administrator and type the following command:
net stop wuauserv
Then, type the following command to restart the service:

net start wuauserv
To check your internet connection, open a web browser and try to access a website. If you are unable to access the website, then your internet connection is not working properly.

To update your drivers, go to the website of your computer's manufacturer and download the latest drivers for your hardware.

To perform a clean boot, follow these steps:

Open the Start menu and search for "msconfig".
Click on the "System Configuration" app.
Click on the "Boot" tab.
Under "Boot options", select the "Safe boot" option and click on the "OK" button.
Restart your computer.
Once your computer has restarted, you will be in safe mode. In safe mode, only the essential drivers and services will be loaded. This can help to isolate any third-party software that may be causing the problem.

Follow this Guide but concentrate on Step 5. It might just be a corrupted update.
https://www.guidingtech.com/top-ways-to-windows-11-updates-not-downloading-or-installing/

Make sure report this issue using the Feedback Hub app.
Check and see if there is any new update available?
Try performing Clean Boot and see if it works?
Have a look at:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd