I use WP Calendar on several sites and love it! On one of my installs, I'm getting this error on the bottom of the screen whenever I add or edit an event:
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'wp_tiny_mce_preload_dialogs' not found or invalid function name in /usr/www/users/ppjobs/papca/wp-includes/plugin.php on line 405
I've tried updating my plugins, and even put a fresh install of 3.2.1 but the error is still there.
Has anyone had this before? Is there a fix?