Fatal error: Uncaught Error: Interface "Facebook\PersistentData\PersistentDataInterface" not found in /opt/app-root/src/wp-content/plugins/xyz-wp-smap/api/Facebook/PersistentData/FacebookSessionPersistentDataHandler.php:33 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/xyz-wp-smap/api/Facebook/PersistentData/FacebookSessionPersistentDataHandler.php on line 33