diff --git a/main/admin/skill_badge_list.php b/main/admin/skill_badge_list.php
index 1a0104591f..ba933eb6fc 100644
--- a/main/admin/skill_badge_list.php
+++ b/main/admin/skill_badge_list.php
@@ -1,12 +1,11 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use ChamiloSession as Session;
-
 /**
  * Show information about Mozilla OpenBadges
  * @author Angel Fernando Quiroz Campos <angel.quiroz@beeznest.com>
  * @package chamilo.admin.openbadges
+ * @deprecated use skill_list.php
  */
 
 $cidReset = true;
diff --git a/main/admin/skill_create.php b/main/admin/skill_create.php
index c9ff881310..1f708fee40 100644
--- a/main/admin/skill_create.php
+++ b/main/admin/skill_create.php
@@ -1,8 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use ChamiloSession as Session;
-
 /**
  * Create skill form
  * @author Angel Fernando Quiroz Campos <angel.quiroz@beeznest.com>
diff --git a/main/admin/skill_edit.php b/main/admin/skill_edit.php
index a2032b8838..cc4854a18f 100644
--- a/main/admin/skill_edit.php
+++ b/main/admin/skill_edit.php
@@ -1,8 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use ChamiloSession as Session;
-
 /**
  * Skill edit form
  * @author Angel Fernando Quiroz Campos <angel.quiroz@beeznest.com>
diff --git a/main/admin/skill_level.php b/main/admin/skill_level.php
index 0f47e2eb69..bf8cddd3b6 100644
--- a/main/admin/skill_level.php
+++ b/main/admin/skill_level.php
@@ -1,5 +1,4 @@
 <?php
-
 /* For licensing terms, see /license.txt */
 
 /**
diff --git a/main/admin/skill_profile.php b/main/admin/skill_profile.php
index 07ff6426d1..a3c3ba6c41 100644
--- a/main/admin/skill_profile.php
+++ b/main/admin/skill_profile.php
@@ -1,5 +1,4 @@
 <?php
-
 /* For licensing terms, see /license.txt */
 
 /**
@@ -95,10 +94,10 @@ switch ($action) {
                 get_lang('List'),
                 null,
                 ICON_SIZE_MEDIUM
-                ),
+            ),
             $listAction,
             ['title' => get_lang('List')]
-            );
+        );
         break;
     case 'edit':
         $tpl->assign('form', $formToDisplay);
@@ -108,10 +107,10 @@ switch ($action) {
                 get_lang('List'),
                 null,
                 ICON_SIZE_MEDIUM
-                ),
+            ),
             $listAction,
             ['title' => get_lang('List')]
-            );
+        );
 
         if ($form->validate()) {
             $values = $form->exportValues();
@@ -130,10 +129,10 @@ switch ($action) {
                 get_lang('List'),
                 null,
                 ICON_SIZE_MEDIUM
-                ),
+            ),
             $listAction,
             ['title' => get_lang('List')]
-            );
+        );
         $em->remove($item);
         $em->flush();
         header('Location: '.$listAction);
@@ -147,10 +146,10 @@ switch ($action) {
                 get_lang('Add'),
                 null,
                 ICON_SIZE_MEDIUM
-                ),
+            ),
             api_get_self().'?action=add',
             ['title' => get_lang('Add')]
-            );
+        );
 }
 
 $tpl->assign('list', $list);
diff --git a/main/admin/skill_translate.php b/main/admin/skill_translate.php
index 821042161b..146fba49df 100644
--- a/main/admin/skill_translate.php
+++ b/main/admin/skill_translate.php
@@ -70,12 +70,18 @@ $form = new FormValidator('new_lang_variable', 'POST', $translateUrl);
 $form->addHeader(get_lang('AddWordForTheSubLanguage'));
 $form->addText('variable_language', get_lang('LanguageVariable'), false);
 $form->addText('original_name', get_lang('OriginalName'), false);
-$form->addSelect('sub_language', [get_lang('SubLanguage'), get_lang('OnlyActiveSubLanguagesAreListed')], $languagesOptions);
+$form->addSelect(
+    'sub_language',
+    [get_lang('SubLanguage'), get_lang('OnlyActiveSubLanguagesAreListed')],
+    $languagesOptions
+);
 
 if ($languageId) {
     $languageInfo = api_get_language_info($languageId);
-
-    $form->addText('new_language', [get_lang('Translation'), get_lang('IfThisTranslationExistsThisWillReplaceTheTerm')]);
+    $form->addText(
+        'new_language',
+        [get_lang('Translation'), get_lang('IfThisTranslationExistsThisWillReplaceTheTerm')]
+    );
     $form->addHidden('file_id', 0);
     $form->addHidden('id', $languageInfo['parent_id']);
     $form->addHidden('sub', $languageInfo['id']);
diff --git a/main/admin/skills.php b/main/admin/skills.php
index 2ccad4c5ba..0d8db2379a 100755
--- a/main/admin/skills.php
+++ b/main/admin/skills.php
@@ -27,7 +27,6 @@ $html = $skill_visualizer->return_html();
 $url = api_get_path(WEB_AJAX_PATH).'skill.ajax.php?1=1';
 
 $tpl = new Template(null, false, false);
-
 $tpl->assign('url', $url);
 $tpl->assign('html', $html);
 $tpl->assign('skill_visualizer', $skill_visualizer);
diff --git a/main/admin/skills_profile.php b/main/admin/skills_profile.php
index f1297a5bc5..63d6b38a2a 100755
--- a/main/admin/skills_profile.php
+++ b/main/admin/skills_profile.php
@@ -89,7 +89,6 @@ if (!empty($users)) {
     }
 }
 
-//$tpl->assign('user_list', $user_list);
 $tpl->assign('order_user_list', $ordered_user_list);
 $tpl->assign('total_search_skills', $count_skills);