Hello,
We are currently observing 100% return label generation failure with carrier Canada Post. This is due to a disruption in Canada Post services. The status of the issue on the Canada Post side can be monitored here: https://status.canadapost.ca/.
Our team is currently monitoring the situation and reaching out to Canada Post to resolve the issue.
Our next update will be at, 5:00 PM PST, or as soon as the issue is resolved.
Sincerely,
Narvar Support