Having problems with the following certificate confirmation, you get the following message: "The servirdor certificate is not in your trusted store."

I am having a problem with the following certificate confirmation that looks like it is being stored on a server that is no longer acting as an effective manager device in my enterprise. How do I proceed in a way that this confirmation is no longer necessary to confirm, knowing that the same certification confirmation is being stored in a server that is no longer active in the company, understanding the risks they can generate in case that same certificate is not being stored in my Antivirus service unit?