After the latest update, the dashboard widget is giving a 400 error.
Last Error: 2016-04-08 20:30:06: exception 'Google_Auth_Exception' with message 'Error refreshing the OAuth2 token
It seems each time when you go to the Authorization page it then states that there is a problem and that the plugin needs reauthorization.
After reauthorizing the plugin, it will work for a few days and break again.
Thank you for looking into this.
https://wordpress.org/plugins/google-analytics-dashboard-for-wp/