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Azure Site Recovery agent has expired on your Hyper-V server. To prevent this, you should first ensure that you are using the latest version of the agent. You can do this by going to the Azure Portal and checking the status under your Recovery Services Vault. If it shows that the agent has expired or expired, you will need to update it.
You can download the latest version from Microsoft’s official site to update the agent. If necessary, remove the old one first, then put the new one on. After installing the new agent, restart your server and make sure everything is working properly. Finally, check the Azure Portal again to confirm that the warning has gone, and the agent has updated.
If you have any concerns, please go through this link: -
https://learn.microsoft.com/en-us/azure/site-recovery/service-updates-how-to
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