RE: Connect your Bot to the World - XML, JSON, Web Services, HTML Scraping, Twitter, Facebook, Telegram, Email

It sounds like you did not connect your bot to Facebook Messenger correctly.
Ensure you,

• Created a Facebook app at https://developers.facebook.com
• Used its app id and secret to authorize your bot
• Selected the correct Facebook page when you clicked "Connect"
• Ensure you setup your Facebook app correctly, and registered the webhook correctly
• Ensure you subscribed your app to the correct page.
• Ensure you used the apps page token, and saved in it your bot's properties.