when I activate the plugin I get a "success message". However, when i visit my page front-end I get the following notice/error within the widget:
Notice: Undefined index: show_link in /mysite/wp-content/plugins/feedburner-email-widget/widget-feedburner-email.php on line 112
as soon as I activate "Show feedburner link" in the widget settings everything works fine.
wordpress and plugin are up to date.
do you need further information?