diff --git a/main/gradebook/lib/flatview_data_generator.class.php b/main/gradebook/lib/flatview_data_generator.class.php
index a0570724f4..114abb43c6 100755
--- a/main/gradebook/lib/flatview_data_generator.class.php
+++ b/main/gradebook/lib/flatview_data_generator.class.php
@@ -237,6 +237,7 @@ class FlatViewDataGenerator
             $item = $this->evals_links [$count + $items_start];
             $headers[] = $item->get_name();
         }
+
         return $headers;
     }
 
@@ -556,7 +557,7 @@ class FlatViewDataGenerator
             $divide = isset($score[1]) && !empty($score[1]) ? $score[1] : 1;
 
             // Sub cat weight
-            $sub_cat_percentage = $sum_categories_weight_array[$item->get_category_id()];
+            //$sub_cat_percentage = $sum_categories_weight_array[$item->get_category_id()];
 
             $item_value = isset($score[0]) ? $score[0]/$divide : 0;
 
@@ -722,7 +723,7 @@ class FlatViewDataGenerator
                 $score_final = ($score[0] / $score_denom) * 100;
                 $row[] = $score_final;
             }
-            $total_score = array($item_value, $item_total);
+            //$total_score = array($item_value, $item_total);
             $score_final = ($item_value / $item_total) * 100;
 
             $row[] = $score_final;
diff --git a/main/inc/lib/formvalidator/FormValidator.class.php b/main/inc/lib/formvalidator/FormValidator.class.php
index 1d778506ce..3c5b95e81b 100755
--- a/main/inc/lib/formvalidator/FormValidator.class.php
+++ b/main/inc/lib/formvalidator/FormValidator.class.php
@@ -586,7 +586,7 @@ EOT;
      * @param string $label
      * @param array  $attributes
      */
-    public function add_file($name, $label, $attributes = array())
+    public function addFile($name, $label, $attributes = array())
     {
         $this->addElement('file', $name, $label, $attributes);
     }