staticman failing to create pull request

Steps to reproduce:

• Go to the Popcorn demo site.
• Enter a review.
• Hit submit.

Result: an error dialog appears (“Error Sorry, there was an error with the submission!”)

A new branch will be created, but there will be no pull request. For instance, this is the file in the branch when I tried - https://github.com/eduardoboucas/popcorn/blob/staticman_d5564aa0-86cd-11e8-bce9-2fc4fd410763/_data/reviews/entry1531507924416.yml

I notices this on my own blog as well, but got a more detailed response:

{
   "success":false,
   "rawError":{
      "code":403,
      "status":"Forbidden",
      "message":"{\"message\":\"At least one email address must be verified to do that.\",
           \"documentation_url\":\"https://help.github.com/articles/adding-an-email-address-to-your-github-account\"}"
   },
   "errorCode":"GITHUB_CREATING_PR"
}

[eduardoboucas]

Great. Thanks all!

[MiKatre]

Exact same issue with my two websites using staticman:

{
   "success":false,
   "rawError":{
      "code":403,
      "status":"Forbidden",
      "message":"{\"message\":\"At least one email address must be verified to do that.\",
           \"documentation_url\":\"https://help.github.com/articles/adding-an-email-address-to-your-github-account\"}"
   },
   "errorCode":"GITHUB_CREATING_PR"
}