We have identified and resolved a recent issue with certificates for iOS and Mac code signing, Apple Push Notifications and Safari Extensions. If you have experienced any problems with a certificate issued over the past 4 days, simply re-generate a new one.
This could be the reason for this morning’s outage over at the Apple Developer Center portal. A quick look at recent posts on Apple Developer Forums reveals that programmers have experienced various issues with faulty code signing certificates since Friday. The hiccup inconvenienced developers with new certificates, as they were unable to submit new apps or app updates.