Google Cloud Deployment - User disabled

Following this instruction, I try to deploy a front end app to Google Cloud. On the last step, I get the following error for the command "gcloud app deploy"

 (gcloud.app.deploy) Unable to deploy to application [my-app] with status [USER_DISABLED]: Deploying to stopped apps is not allowed.

I take a look at my Google Cloud account and can't find the disabled status.

Where shall I look to solve this problem?

How do I disable a user in GCP?

In the Google Cloud Platform console, go to the IAM permissions page. Select the project you want to remove an account from. Click the checkbox next to the row containing the account you want removed from the member list, then click Remove. Alternatively, click the trash can icon next to the account you want to remove.

You should be able to re-enable your application by going to App Engine -> Settings when managing your project in the Google Cloud Platform Console.