Uninstall the SCOM Agent Manually on the SharePoint Servers.
Delete the Microsoft Monitoring Agent from "C:\Program Files\" folder on your SharePoint Server.
Restart the Server and try to open the CA and Default sites now.
Uninstall the SCOM Agent Manually on the SharePoint Servers.
Delete the Microsoft Monitoring Agent from "C:\Program Files\" folder on your SharePoint Server.
Restart the Server and try to open the CA and Default sites now.