Go to Integrations on BotDistrikt.
Select the Messenger icon
Click on the 'Continue with Facebook' button.
Continue as yourself.
Select your page.
Give Botdistrikt the following permissions and click on the 'Done' button.
Click on OK
You'll be taken back to the BotDistrikt page. Select the Facebook page you would like to link and click on 'Link to Messenger'.
And you are done!