"Invalid License "Error while opening Process studio (On-premise ) and AutomationEdge UI.

Error:
On AutomationEdge portal it is showing license expire in 1 day, however the license will expiry date is future dated.
Error while Opening Process studio: You have an invalid license. Please contact AutomationEdge System Administrator to update your license.
Error in AutomationEdge logs:
In AutomationEdge logs its showing that - the Mac addresses are [null]

How to Reproduce:
If there are any system-level changes, this issue may be reproduced.

Resolution:
- Check the system's MAC address.
- Open the database and navigate to: vae > ae_license > Mac_Address.
- Compare your system's MAC address with the one stored in the database.
- If System's mac address is not mentioned in database, it means your Mac address has been changed, so you need to update it in the license.
- To add the updated Mac address in the license, please raise a new ticket with the License Team.
If the MAC address match, then proceed with the following steps.
- Stop the services (Tomcat, Active MQ (AMQ), and PostgreSQL (DB)), restart the machine, and then start the services again.
After that the issue will be resolved.