Fixe update 2

core/class/document.class.php

@@ -204,7 +204,7 @@ class document
     public static function update()
     {
         $file = core::getFiles("attachement-document");
-        if($file != NULL){ 
+        if($file != NULL AND $file["name"] != ""){ 
             $checkFile = file::getErrorUpload($file);
             if(isset($checkFile["status"]) AND $checkFile["status"] == "error"){
                 alert::recError($checkFile["description"]);