Fix calendar events fetching error on private profile page.

app/assets/javascripts/pages/users/user_tabs.js

@@ -208,6 +208,8 @@ export default class UserTabs {
 
   loadActivityCalendar() {
     const $calendarWrap = this.$parentEl.find('.tab-pane.active .user-calendar');
+    if (!$calendarWrap.length) return;
+
     const calendarPath = $calendarWrap.data('calendarPath');
 
     AjaxCache.retrieve(calendarPath)

changelogs/unreleased/fix-calendar-events-fetching-error.yml

+---
+title: Fix calendar events fetching error on private profile page
+merge_request: 23718
+author: Harry Kiselev
+type: other