Loading, but doesn't load

Having the same problem on my agenda-style calendar.
https://www.4thsevenoaks.org.uk
Strangely the grid one works fine
https://www.4thsevenoaks.org.uk/latest-news/calendar/

I’m having the same issue.

Although the Month and Weekly work just fine, the Agenda view (the one we need) doesn’t load.

It just says “Loading” forever.

Same here on this site: https://www.uschillel.org/ (agenda view not working in sidebar widget implementation of plugin) Glad I’m not alone!

Having issue with Loading/viewing the Google Calendar Agenda view.
It is possibly related to the latest WordPress update 3.9.3?

Issues with moving to prior month in Month view.

I am having the same issue. My calendar displays current but if I click next it says “loading…” forever.
Does this plugin have any support anymore?

I switched over to SZ – Google plugin for Google Calendar. Easy to setup and use.

Does “SZ” allow the same kind of color styling that Stout does?

Happens to me too – probably started with the update to WordPress 4.0.1.

Will have to go back to another plugin – possibly the “Google Calendar Widget & Short Code” I used before Stout

This looks to describe the problem
https://stackoverflow.com/questions/26981661/fullcalendar-google-integration-returns-a-403-error

Google calendar API v2 was deprecated on Nov 17, 2014
https://developers.google.com/google-apps/calendar/v2/developers_guide_dotnet?hl=de-DE

Too bad.

Right, it’s the API deprecation that has put an end to this fine plugin’s usefulness.