So I have a google calendar with information and I want to import that calendar into a xibo calendar, however when I am putting in the Public iCal Address for some reason I get an error saying the widget needs to be configured before it will be shown, the iCal provided is not valid please provide a valid feed. How do I fix this. Thanks for your help. Below is the public iCal link. https://calendar.google.com/calendar/ical/d8e8aa7461cf71fd2f774a1aae185a941b53c21856bed1d485b044ff93c546e0%40group.calendar.google.com/public/basic.ics