iOS certificate has an invalid issuer¶
Since February 14, 2016, it might be surprising to found all your certificates are invalid.
Don't worry, it's not your fault :) It's Apple's root certificate is expired, causing all the issued certificates expired too.
Details please refer to Apple's document https://developer.apple.com/support/certificates/expiration/index.html.
To solve this, please download Apple's new root certificate https://developer.apple.com/certificationauthority/AppleWWDRCA.cer and install into your keychain. After installing this new one, all your certificates are valid again.
The push certificates uploaded to StreetHawk server are not affected by this change. You don't need to upload again to make it work.