I have same issue and noticed this error in chrome
Refused to display ‘https:/…../wp-content/plugins/accelerated-mobile-pages/includes/onesignal-integration/amp-helper-frame.html?appId=———–&parentOrigin=https://www.arabwalls.com’ in a frame because it set ‘X-Frame-Options’ to ‘deny’.
1- Go to the plugin root folder under
/wp-content/plugins/social-networks-auto-poster-facebook-twitter-g/
2- Edit file NextScripts_SNAP.php
3- Add line
$nxs_skipSSLCheck = true;
under
$nxs_isWPMU = defined(‘MULTISITE’) && MULTISITE==true;
4- Deactivate and activate the plugin
