Do you use other repositories? The one from @minugmail has also this issue. And if one repository having issues, then the update is not possible via WebGUI.
Just to share my solution:remove any 3th party repros from /usr/local/etc/pkg/repos/change either to a http mirror or to dns-root.deupdateI will wait for a fix for the LE certs, then I will add the 3th party repros again.