SNAP Autoposter >> automatic publish WP posts to Facebook

On our website we work with Snap Autoposter to publish automatically posts to Facebook. Since May 1st, 2018 use of native Facebook API requires review and approval from Facebook. We started implementation ourselves, following these instructions: [login to view URL] See basic settings in WP: [login to view URL] In our [login to view URL] account settings of the app are already on 'Published' but autopost still doesn't work. It is unclear for us if we still need approval by Facebook OR if there is another issue. We are looking for a developer who can make the Autoposter work, this should be done during a planned Teamviewer session so you can takeover screens ([login to view URL] + WP). It is obliged you have experiences with Facebook API's.