[Plugin: Events Calendar] Cannot update widget options in events calendar

I am working on changing the plugin and for some reason I cannot get the widget options to work anymore.

The form is found in ec_management.class.php on line 583. Once I get this fixed. Please check it out at

https://svn.wp-plugins.org/events-calendar/trunk

https://www.ads-software.com/extend/plugins/events-calendar/