Issue
In "walkup_online_checkin" page, after a walk up location is chosen following message appears under the tab 'Join the queue'.
"The page you are looking for could not be found"
Cause
Custom widget is used instead of OOB widget - 'Online check-in experience'
Resolution
Replacing the custom widget with OOB widget [Online check-in experience] =>/sp_widget.do?sys_id=f84cfc133b7303001d132c2b54efc476 resolves the issue.
