From 966dd36160d73555fcbb8587f8ad7c898ea529f8 Mon Sep 17 00:00:00 2001
From: jmontoyaa <gugli100@gmail.com>
Date: Wed, 26 Apr 2017 15:05:43 +0200
Subject: [PATCH] Fix PHP warnings

---
 main/inc/lib/tracking.lib.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/main/inc/lib/tracking.lib.php b/main/inc/lib/tracking.lib.php
index 4fc0bb7afe..2ce6d68bc0 100755
--- a/main/inc/lib/tracking.lib.php
+++ b/main/inc/lib/tracking.lib.php
@@ -4509,7 +4509,9 @@ class Tracking
 
             $final_course_data = array();
             foreach ($my_course_data as $course_id => $value) {
-                $final_course_data[$course_id] = $course_list[$course_id];
+                if (isset($course_list[$course_id])) {
+                    $final_course_data[$course_id] = $course_list[$course_id];
+                }
             }
             $course_in_session[$my_session_id]['course_list'] = $final_course_data;
             $course_in_session[$my_session_id]['name'] = $session_name;
@@ -4789,7 +4791,9 @@ class Tracking
                     $all_average += $average;
                 }
 
-                $all_average = $all_average / count($course_list);
+                if (!empty($course_list)) {
+                    $all_average = $all_average / count($course_list);
+                }
 
                 if (isset($_GET['session_id']) && $my_session_id == $_GET['session_id']) {
                     $html .= '<tr style="background-color:#FBF09D">';