Merge pull request #116 from newfold-labs/fix/PRESS10-60

Fix  PHP Warning:  Attempt to read property "public" on null

includes/Listeners/Content.php

@@ -38,7 +38,7 @@ public function post_status( $new_status, $old_status, $post ) {
 		/**
 		 * Ignore all post types that aren't public
 		 */
-		if ( $post_type->public !== true ) {
+		if ( ! $post_type || $post_type->public !== true ) {
 			return;
 		}