Please check if you have following configuration statements in your current running/active configuration on the device.
set system phone-home server https://redirect.juniper.net
set system phone-home rfc-compliant
The logs pointed out are generated by the phone-home client.
These configurations are required for zero touch provisioning the device durig initial deployment. If your device is already running the necessary configurations and you no more need any auto provisioning, then you can delete the above two configuration statements.