Your server license has been invalidated as the current information is not up to date

I'm seeing this log in service center, I want to understand what scenario this will come.

This errors occurred in specific time and that time Application was not accessible, saying the system is currently unavailable. please try again later or contact your administrator.

Really not sure what it means

Hi Sravan

As i understood from your heading you need to update platform license. For how to update it you can refer the Link.