Error facebook Mesenger

Hi Leonardo,
 
Thank you for reaching out to Zendesk Support.
 
In regards to your concern, have you verified that you are accepting messages in the settings of your Facebook page?
 
If not, you can check it by going into Facebook, go to Page Settings » General » Messages.
 
Please don't hesitate to reach back if you have any other questions or concerns. Thank you and have a wonderful day ahead!
 
 
Kind regards,