Renew a push notification certificate in macOS Server
You must periodically renew certificates used to provide encrypted notification. Renewing a certificate creates a new certificate with a new expiration date.
Select your server in the Server app sidebar, select Profile Manager, then click Configure under Device communication push notification certificate.
Next to the expiration date, click Renew.
Enter the Apple ID and password.
Click Renew Certificate.
Gracias por tus comentarios.