zampai on "[Plugin: Wordfence Security] WordFence API error and Modified plugin file message"

Here is an example for API problem. Wordfence says "file has changed".
When I clic "see how the file has changed" I get "WordFence API error: An error occured trying to open the requested file." :
Here is my file :

<?php
defined('WYSIJA') or die('Restricted access');
class WYSIJA_view_front extends WYSIJA_view{
	var $controller='';
	function WYSIJA_view_front(){

	}
}

Here is the file just dowloaded from the official wordpress plugin directory :

<?php
defined('WYSIJA') or die('Restricted access');
class WYSIJA_view_front extends WYSIJA_view{
	var $controller='';
	function WYSIJA_view_front(){

	}

        /**
         * deprecated, but kept for conflict with plugin Magic action box
         * until it's fixed.
         * @param type $print
         */
        function addScripts($print=true){
        }
}