T40

@troilee
Actually you only need to modify the content.php by changing the_excerpt(); to the_content();. ??

Since the WP update to 3.8.1 I get a similar error on the calendar page in the frontend & backend:

Frontend Error:
Warning: Creating default object from empty value in (…)/wp-content/plugins/wp-calendar/fsCalendarEvent.php on line 69

Backend Error:
Warning: Creating default object from empty value in (…)/wp-content/plugins/wp-calendar/fsCalendarAdmin.php on line 367

The source of the problem may be the Jetpack plugin. I had the same issue.