diff --git a/src/frontend/cass-shortcode-calendar-global.js b/src/frontend/cass-shortcode-calendar-global.js
index c9f0fa1..60d7be3 100644
--- a/src/frontend/cass-shortcode-calendar-global.js
+++ b/src/frontend/cass-shortcode-calendar-global.js
@@ -271,7 +271,11 @@ document.addEventListener('DOMContentLoaded', function () {
                             document.getElementById("raceMeeting").innerHTML = "Le lieu de RDV est <b>" + race.meetingPlaceName + "</b>.";
                             document.getElementById("IDRace").value = race.IDRace;
                             document.getElementById("pageUrl").value = window.location;
-                            document.getElementById("linkManageUser").href = siteUrl + "/wp-admin/admin.php?page=cass-admin-race-user-list&action=edit&IDRace="+race.IDRace;
+                            var linkElement = document.getElementById("linkManageUser");
+                            if (linkElement) {
+                                linkElement.href = siteUrl + "/wp-admin/admin.php?page=cass-admin-race-user-list&action=edit&IDRace=" + race.IDRace;
+                            }
+
                             this.eventRaceSelected = race.IDRace;
 
                             raceSubscriptionStartEndMeetingPlaceParticipiant = 'Les inscriptions sont ouvertes du <b>' + getDateFormated(race.subscriptionStart) + ' </b> au  <b>' + getDateFormated(race.subscriptionEnd) + '</b>.';