diff --git a/public/main/cron/check_lp_total_time.php b/public/main/cron/check_lp_total_time.php
index 1aa8f18b86..ab1870e227 100644
--- a/public/main/cron/check_lp_total_time.php
+++ b/public/main/cron/check_lp_total_time.php
@@ -115,13 +115,13 @@ function compareLpTimeAndCourseTime($user, $courseInfo, $sessionId = 0)
         $content .= PHP_EOL;
 
         // Check possible records with high values
-        $sql = "SELECT iv.iid, lp_id, total_time 
-                FROM c_lp_view v 
+        $sql = "SELECT iv.iid, lp_id, total_time
+                FROM c_lp_view v
                 INNER JOIN c_lp_item_view iv
                 ON (iv.c_id = v.c_id AND v.id = iv.lp_view_id)
-                WHERE 
-                    user_id = $userId AND 
-                    v.c_id = $courseId AND 
+                WHERE
+                    user_id = $userId AND
+                    v.c_id = $courseId AND
                     session_id = $sessionId
                 ORDER BY total_time desc
                 LIMIT 1
diff --git a/public/main/lp/lp_report.php b/public/main/lp/lp_report.php
index a4908a6445..050247399a 100644
--- a/public/main/lp/lp_report.php
+++ b/public/main/lp/lp_report.php
@@ -15,8 +15,8 @@ if (!$isAllowedToEdit) {
 
 $lpTable = Database::get_course_table(TABLE_LP_MAIN);
 
-$lpId = isset($_GET['lp_id']) ? intval($_GET['lp_id']) : false;
-$export = isset($_GET['export']) ? true : false;
+$lpId = isset($_GET['lp_id']) ? (int) $_GET['lp_id'] : false;
+$export = isset($_GET['export']);
 
 if (empty($lpId)) {
     api_not_allowed(true);
@@ -161,6 +161,7 @@ if ($export) {
         //'course_code' => $course_code
     ];
     $pdf = new PDF('A4', 'P', $pdfParams);
+
     $pdf->html_to_pdf_with_template(
         $result,
         false,
diff --git a/public/main/mySpace/myStudents.php b/public/main/mySpace/myStudents.php
index 43237f1245..d9325c3b27 100644
--- a/public/main/mySpace/myStudents.php
+++ b/public/main/mySpace/myStudents.php
@@ -1378,6 +1378,7 @@ if (empty($details)) {
         }
 
         $userEntity = api_get_user_entity(api_get_user_id());
+        $codePath = api_get_path(WEB_CODE_PATH);
 
         /** @var CLpCategory $item */
         foreach ($categories as $item) {
@@ -1566,8 +1567,8 @@ if (empty($details)) {
                     }
                     $link = Display::url(
                         Display::return_icon('2rightarrow.png', get_lang('Details')),
-                        'lp_tracking.php?cidReq='.$course_code.'&course='.$course_code.$from.'&origin='.$origin
-                        .'&lp_id='.$lp_id.'&student_id='.$user_info['user_id'].'&id_session='.$sessionId
+                        $codePath.'mySpace/lp_tracking.php?cid='.$courseInfo['real_id'].'&course='.$course_code.$from.'&origin='.$origin
+                        .'&lp_id='.$lp_id.'&student_id='.$user_info['user_id'].'&sid='.$sessionId
                     );
                     echo Display::tag('td', $link);
                 }
@@ -1575,9 +1576,9 @@ if (empty($details)) {
                 if (api_is_allowed_to_edit()) {
                     echo '<td>';
                     if (true === $any_result) {
-                        $url = 'myStudents.php?action=reset_lp&sec_token='.$token.'&cidReq='.$course_code.'&course='
+                        $url = 'myStudents.php?action=reset_lp&sec_token='.$token.'&cid='.$courseInfo['real_id'].'&course='
                             .$course_code.'&details='.$details.'&origin='.$origin.'&lp_id='.$lp_id.'&student='
-                            .$user_info['user_id'].'&details=true&id_session='.$sessionId;
+                            .$user_info['user_id'].'&details=true&sid='.$sessionId;
                         echo Display::url(
                             Display::return_icon('clean.png', get_lang('Clean')),
                             $url,