Minor - Fixing lang variable

main/exercice/exercise.class.php

@@ -3355,7 +3355,7 @@ class Exercise {
 		
 		//2. If the exercise is not active 
 		if ($this->active == 0) {
-			return array('value' => false, 'message' => Display::return_message(get_lang('ExerciseNotAvailable'), 'warning', false));            
+			return array('value' => false, 'message' => Display::return_message(get_lang('ExerciseNotFound'), 'warning', false));            
 		}        
 		
 		//3. We check if the time limits are on

main/exercice/overview.php

@@ -119,9 +119,7 @@ $options = '';
 if (!empty($exercise_url_button)) {
 	$options .= $exercise_url_button;
 }
-$options  = Display::div($options, array('class'=>'offset4 span3'));
-
-
+$options  = Display::div($options, array('class'=>'offset4 span4'));
 
 $my_attempt_array = array();
 $table_content = '';