diff --git a/main/admin/usergroup_users.php b/main/admin/usergroup_users.php
index fb8580227e..fc5f1d0b68 100644
--- a/main/admin/usergroup_users.php
+++ b/main/admin/usergroup_users.php
@@ -133,13 +133,14 @@ $column_model = [
 ];
 
 if (api_get_plugin_setting('lp_calendar', 'enabled') === 'true') {
+    $calendarPlugin = LpCalendarPlugin::create();
     $columns = [
         get_lang('Name'),
         get_lang('Calendar'),
-        get_lang('Examn'),
-        get_lang('TimeSpentInTheCourse'),
-        get_lang('Jours de parcours réalisés'),
-        get_lang('Différence de nombre de jours avec le plan issu du learning_calendar '),
+        get_lang('ClassroomActivity'),
+        get_lang('TimeSpentByStudentsInCourses'),
+        $calendarPlugin->get_lang('NumberDaysAccumulatedInCalendar'),
+        $calendarPlugin->get_lang('DifferenceOfDaysAndCalendar'),
         get_lang('Actions'),
     ];
 
@@ -154,7 +155,13 @@ if (api_get_plugin_setting('lp_calendar', 'enabled') === 'true') {
             'sortable' => 'false',
             'formatter' => 'extra_formatter',
         ],
-        ['name' => 'examn', 'index' => 'examn', 'width' => '35', 'align' => 'left', 'sortable' => 'false'],
+        [
+            'name' => 'gradebook_items',
+            'index' => 'gradebook_items',
+            'width' => '35',
+            'align' => 'left',
+            'sortable' => 'false',
+        ],
         ['name' => 'time_spent', 'index' => 'time_spent', 'width' => '35', 'align' => 'left', 'sortable' => 'false'],
         [
             'name' => 'lp_day_completed',
diff --git a/main/extra/myStudents.php b/main/extra/myStudents.php
index ca331dd7d3..99d0f78e05 100644
--- a/main/extra/myStudents.php
+++ b/main/extra/myStudents.php
@@ -9,8 +9,8 @@ if (empty($allow)) {
 }
 
 api_block_anonymous_users();
-$export_csv = isset($_GET['export']) && $_GET['export'] == 'csv' ? true : false;
-$course_code = isset($_GET['course']) ? Security:: remove_XSS($_GET['course']) : null;
+$export_csv = isset($_GET['export']) && $_GET['export'] === 'csv' ? true : false;
+$course_code = isset($_GET['course']) ? Security::remove_XSS($_GET['course']) : null;
 $_course = api_get_course_info();
 $coment = '';
 
@@ -217,7 +217,7 @@ switch ($action) {
         }
         break;
     case 'reset_lp':
-        $lp_id = isset($_GET['lp_id']) ? intval($_GET['lp_id']) : '';
+        $lp_id = isset($_GET['lp_id']) ? (int) $_GET['lp_id'] : '';
 
         if (api_is_allowed_to_edit() &&
             !empty($lp_id) &&
@@ -273,8 +273,8 @@ if (api_is_session_admin() || api_is_drh()) {
 // Teacher or admin
 if (!empty($sessions_coached_by_user)) {
     foreach ($sessions_coached_by_user as $session_coached_by_user) {
-        $sid = intval($session_coached_by_user['id']);
-        $courses_followed_by_coach = Tracking:: get_courses_followed_by_coach(api_get_user_id(), $sid);
+        $sid = (int) $session_coached_by_user['id'];
+        $courses_followed_by_coach = Tracking::get_courses_followed_by_coach(api_get_user_id(), $sid);
         $courses_in_session_by_coach[$sid] = $courses_followed_by_coach;
     }
 }
diff --git a/main/inc/ajax/model.ajax.php b/main/inc/ajax/model.ajax.php
index 0cf9f5b5e1..af118ab826 100755
--- a/main/inc/ajax/model.ajax.php
+++ b/main/inc/ajax/model.ajax.php
@@ -796,7 +796,7 @@ switch ($action) {
             $columns = [
                 'name',
                 'calendar',
-                'examn',
+                'gradebook_items',
                 'time_spent',
                 'lp_day_completed',
                 'days_diff',
diff --git a/main/inc/lib/tracking.lib.php b/main/inc/lib/tracking.lib.php
index f68bf89ede..7413651473 100755
--- a/main/inc/lib/tracking.lib.php
+++ b/main/inc/lib/tracking.lib.php
@@ -5417,7 +5417,8 @@ class Tracking
         $pluginCalendar = api_get_plugin_setting('lp_calendar', 'enabled') === 'true';
         if ($pluginCalendar) {
             $course_in_session[0] = $courseIdList;
-            $html .= LpCalendarPlugin::getUserStatsPanel($user_id, $course_in_session);
+            $plugin = LpCalendarPlugin::create();
+            $html .= $plugin->getUserStatsPanel($user_id, $course_in_session);
         }
 
         return $html;
diff --git a/main/inc/lib/usergroup.lib.php b/main/inc/lib/usergroup.lib.php
index f965eadb11..384b39423d 100755
--- a/main/inc/lib/usergroup.lib.php
+++ b/main/inc/lib/usergroup.lib.php
@@ -131,7 +131,7 @@ class UserGroup extends Model
 
                     $stats = LpCalendarPlugin::getUserStats($userId, $courseAndSessionList);
 
-                    $data['examn'] = 'examn';
+                    $data['gradebook_items'] = '@todo';
                     $totalTime = 0;
                     foreach ($courseAndSessionList as $sessionId => $course) {
                         foreach ($course as $courseId) {
@@ -140,11 +140,8 @@ class UserGroup extends Model
                     }
 
                     $data['time_spent'] = api_time_to_hms($totalTime);
-
                     $data['lp_day_completed'] = $stats['completed'];
                     $data['days_diff'] = $stats['diff'];
-
-
                 }
                 $data['id'] = $data['user_id'];
                 $list[] = $data;
diff --git a/main/mySpace/index.php b/main/mySpace/index.php
index 9fe9571eca..ab3b6e2334 100755
--- a/main/mySpace/index.php
+++ b/main/mySpace/index.php
@@ -101,8 +101,9 @@ if ($is_platform_admin) {
 
         $pluginCalendar = api_get_plugin_setting('lp_calendar', 'enabled') === 'true';
         if ($pluginCalendar) {
+            $lpCalendar = LpCalendarPlugin::create();
             $menu_items[] = Display::url(
-                Display::return_icon('agenda.png', get_lang('LearningCalendar'), [], ICON_SIZE_MEDIUM),
+                Display::return_icon('agenda.png', $lpCalendar->get_lang('LearningCalendar'), [], ICON_SIZE_MEDIUM),
                 api_get_path(WEB_PLUGIN_PATH).'lp_calendar/start.php'
             );
         }
diff --git a/main/mySpace/myStudents.php b/main/mySpace/myStudents.php
index b0fa891c8f..5701ff9f13 100755
--- a/main/mySpace/myStudents.php
+++ b/main/mySpace/myStudents.php
@@ -16,7 +16,7 @@ require_once __DIR__.'/../inc/global.inc.php';
 api_block_anonymous_users();
 
 $export = isset($_GET['export']) ? $_GET['export'] : false;
-$sessionId = isset($_GET['id_session']) ? intval($_GET['id_session']) : 0;
+$sessionId = isset($_GET['id_session']) ? (int) $_GET['id_session'] : 0;
 $origin = api_get_origin();
 $course_code = isset($_GET['course']) ? Security::remove_XSS($_GET['course']) : '';
 $courseInfo = api_get_course_info($course_code);
@@ -367,7 +367,7 @@ if (api_is_session_admin() || api_is_drh()) {
 // Teacher or admin
 if (!empty($sessions_coached_by_user)) {
     foreach ($sessions_coached_by_user as $session_coached_by_user) {
-        $sid = intval($session_coached_by_user['id']);
+        $sid = (int) $session_coached_by_user['id'];
         $courses_followed_by_coach = Tracking::get_courses_followed_by_coach(api_get_user_id(), $sid);
         $courses_in_session_by_coach[$sid] = $courses_followed_by_coach;
     }
@@ -1875,7 +1875,7 @@ if ($allow && (api_is_drh() || api_is_platform_admin())) {
 $pluginCalendar = api_get_plugin_setting('lp_calendar', 'enabled') === 'true';
 if ($pluginCalendar) {
     $plugin = LpCalendarPlugin::create();
-    echo LpCalendarPlugin::getUserStatsPanel($student_id, $courses_in_session);
+    echo $plugin->getUserStatsPanel($student_id, $courses_in_session);
 }
 
 if ($export) {
diff --git a/plugin/lp_calendar/LpCalendarPlugin.php b/plugin/lp_calendar/LpCalendarPlugin.php
index 909f6b4745..c380b5e8b8 100644
--- a/plugin/lp_calendar/LpCalendarPlugin.php
+++ b/plugin/lp_calendar/LpCalendarPlugin.php
@@ -257,7 +257,7 @@ class LpCalendarPlugin extends Plugin
         }
 
         $list = [];
-        $link = api_get_path(WEB_PLUGIN_PATH).'lp_calendar/start.php';
+        //$link = api_get_path(WEB_PLUGIN_PATH).'lp_calendar/start.php';
         while ($row = Database::fetch_array($result, 'ASSOC')) {
             $list[] = $row;
         }
@@ -633,35 +633,32 @@ class LpCalendarPlugin extends Plugin
      *
      * @return string
      */
-    public static function getUserStatsPanel($userId, $courseAndSessionList)
+    public function getUserStatsPanel($userId, $courseAndSessionList)
     {
         // @todo use translation
         // get events from this year to today
         $stats = self::getUserStats($userId, $courseAndSessionList);
-
-        $html = "Nombre de jours cumulés dans le calendrier: ".$stats['user_event_count'];
+        $html = $this->get_lang('NumberDaysAccumulatedInCalendar').$stats['user_event_count'];
         if (!empty($courseAndSessionList)) {
-            $count = $stats['completed'];
             $html .= '<br />';
-            $html .= "Nombre de jours cumulés dans les parcours réalisés: ".$stats['completed'];
+            $html .= $this->get_lang('NumberDaysAccumulatedInLp').$stats['completed'];
             $html .= '<br />';
-            $html .= 'Nombre de jour de retard ou d\'avance à la date d\'aujourd\'hui '.$stats['diff'];
+            $html .= $this->get_lang('NumberDaysInRetard').' '.$stats['diff'];
         }
 
-        $html = Display::panel($html, get_lang('CalendarStats'));
+        $html = Display::panel($html, $this->get_lang('LearningCalendar'));
         return $html;
     }
 
     /**
-     * @param int $userId
-     * @param int $courseAndSessionList
+     * @param int   $userId
+     * @param array $courseAndSessionList
      *
      * @return array
      */
     public static function getUserStats($userId, $courseAndSessionList)
     {
-        // @todo use translation
-        // get events from this year to today
+        // Get events from this year to today
         $takenCount = self::getUserEvents(
             $userId,
             strtotime(date('Y-01-01')),
@@ -673,11 +670,13 @@ class LpCalendarPlugin extends Plugin
         $completed = 0;
         $diff = 0;
 
-        $html = "Nombre de jours cumulés dans le calendrier: $takenCount";
         if (!empty($courseAndSessionList)) {
             $completed = self::getItemCountChecked($userId, $courseAndSessionList);
-            $diff = $takenCount - $completed;
+            if ($takenCount > $completed) {
+                $diff = $takenCount - $completed;
+            }
         }
+
         return [
             'user_event_count' => $takenCount,
             'completed' => $completed,
diff --git a/plugin/lp_calendar/lang/english.php b/plugin/lp_calendar/lang/english.php
index ec86bddf7e..dc6274cc1d 100644
--- a/plugin/lp_calendar/lang/english.php
+++ b/plugin/lp_calendar/lang/english.php
@@ -4,3 +4,8 @@
 $strings['plugin_title'] = 'Learning path calendar';
 $strings['plugin_comment'] = '';
 $strings['enabled'] = 'Enabled';
+$strings['LearningCalendar'] = 'Learning calendar';
+$strings['NumberDaysAccumulatedInCalendar'] = 'Number of days accumulated in the calendar: ';
+$strings['NumberDaysAccumulatedInLp'] = 'Number of days accumulated in the LP: ';
+$strings['NumberDaysInRetard'] = 'Number of days in retard: ';
+$strings['DifferenceOfDaysAndCalendar'] = 'Difference of days and calendar';
\ No newline at end of file
diff --git a/plugin/lp_calendar/lang/french.php b/plugin/lp_calendar/lang/french.php
index ec86bddf7e..67d6949017 100644
--- a/plugin/lp_calendar/lang/french.php
+++ b/plugin/lp_calendar/lang/french.php
@@ -4,3 +4,8 @@
 $strings['plugin_title'] = 'Learning path calendar';
 $strings['plugin_comment'] = '';
 $strings['enabled'] = 'Enabled';
+$strings['LearningCalendar'] = 'Learning calendar';
+$strings['NumberDaysAccumulatedInCalendar'] = 'Nombre de jours cumulés dans le calendrier: ';
+$strings['NumberDaysAccumulatedInLp'] = 'Nombre de jours cumulés dans les parcours réalisés: ';
+$strings['NumberDaysInRetard'] = "Nombre de jour de retard ou d'avance à la date d'aujourd'hui: ";
+$strings['DifferenceOfDaysAndCalendar'] = 'Différence de nombre de jours avec le plan issu du learning_calendar';
diff --git a/plugin/lp_calendar/lang/spanish.php b/plugin/lp_calendar/lang/spanish.php
index 38b4be3dbe..5b1b10eb3f 100644
--- a/plugin/lp_calendar/lang/spanish.php
+++ b/plugin/lp_calendar/lang/spanish.php
@@ -4,3 +4,4 @@
 $strings['plugin_title'] = 'Learning path calendar';
 $strings['plugin_comment'] = '';
 $strings['enabled'] = 'Activado';
+$strings['LearningCalendar'] = 'Learning calendar';
\ No newline at end of file