Instance Health checks error showing up in Confluence 6.3.1 after it was upgraded

[SOC Auckland]

Hi,

We had recently upgraded Confluence from 5.10.7 to 6.3.1. There were no issues during the upgrade. But after a couple of days an End of Life error pop ups on the dashboard and goes away. The License is currently valid till next year. Checking Support Tools under General Configuration found that the End of Life error was showing up due to: "The health check was unable to complete within the timeout of 60000ms". Is there a way to get rid of this error message.

Any advise would be helpful.

Thanks