What does "certificate has expired" error mean? And how to fix it?

This error indicates an attempt to open a secure connection has failed, Caused by use of expired digital certificate. Recently the ResellKit app had an issue connecting to resellkit.app servers even though the certificate was not expired, The cause of this issue is still unknown but we have implemented a secure workaround for fixing this issue.

If you are receiving this error on the app. Download and install of the latest version of the app (v1.1.10 and above) should fix the issue.