Hi there,
We have a notification in SCCM "site version is past the end of support." "Upgrade your Site" I am unable to dismiss this message
How do I get rid of this message please?

We are on Endpoint Configuration Manager 2002 and I don't think this message is valid yet.
We did migrate from another older SCCM 1710 version to a new server 2019 to this newer Endpoint 2002 version in June 2020, and the old SCCM 1710 has not been Decommissioned yet and is still online and on network due to some devices(probably in cupboards) not online yet and may show up in old console.
Anyway I want to find out if this is why we are getting the message on the NEW console maybe? Also if not, how do we get rid of this message. The service desk that also use the console do not need to see this and raise unnecessary questions please?