To check the reports of your broadcast, please refer to the video below:
As you can see, the broadcast generated a lot of errors:
“(#551) Esta pessoa não está disponível no momento.”
This error is primarily caused by Facebook - they blocked your page from sending too many messages. We highly discourage sending broadcast messages if you use Message Tags improperly.
Best to do broadcast only to subscribers who interacted with your page within 24 hours timespan or you can use One Time Notification or Recurring Notification tokens.