After you click "Connect Account" button, Facebook will show a popup to ask you some rights. Please give us a permission "send messages from page you manage", our system will automatically add "Whitelisted Domains" in your Facebook page settings.
Then, when you click on "Select a Facebook page", if you can't see any Facebook page or find the specific page that you want to connect while you are the admin of these pages, you can follow 4 steps below:
Step 1: Click "Settings" in your personal Facebook account
Step 2: Click "Business integrations"
Step 3: In "Business integrations" section, click "Autoketing Apps"
Step 4: Click "Remove" to finish. Then, you return to the Facebook Chat Box dashboard and reload the page.
If you still encounter any difficulties during the installation, please contact us via email: firstname.lastname@example.org