The issue is related to an outdated Certificate installed on the server or local machine.
The certificates will continue to be updated and can be be downloaded manually from the Google Trust Services website: https://pki.goog/ Once downloaded, the certificate needs to be added to the root level.
! As per December 2019, the certificate to download is the GTS GIA4 certificate. ! Prior to this it was the GTS GIA3 certificate. Please review the current list on the Google Trust Services for the up to date one.