I am a bit of a noob in Drupal.
I use the Calendar (+Date) modules to manage events.
I created a book page, but when I wanted to edit, I get a WSOD, and the following error:
Fatal error: Call to a member function set_display() on a non-object in /hsphere/local/home/ulufenci/test.ulufencing.net/sites/all/modules/calendar/theme/theme.inc on line 656
I have no idea what is causing this, and not sure how to debug that. I just know that it seems something to do with formatting stripes, and the following code: