Hello,
Thank you for posting in Microsoft Community forum.
Based on the description, I understand your question is related to Windows 10 LTSC - System Performance - Crash or Error.
Firstly, make sure that your Windows 10 Enterprise LTSC is properly activated. Sometimes, unactivated versions can cause shutdowns after a certain period. And also, some evaluation version will shout down every one hour after it expired its trail.
Check the Event Viewer for any error messages or warnings that occur around the time of the shutdown. This can provide more insight into what might be causing the issue. Verify your power settings to ensure that there are no configurations set to shut down the system after a specific period. You can check this in the Control Panel under Power Options.
Have a nice day.
Best Regards,
Molly