I have enabled debug to test my installation and I am getting the following notice reports
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:83 - Undefined index: hide
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:81 - Undefined index: id
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:81 - Undefined index: default
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:82 - Undefined index: input
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:88 - Undefined index: input
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:102 - Undefined index: hide
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:179 - Undefined index: autoAttributeAlt
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:208 - Undefined index: id
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:208 - Undefined index: default
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:209 - Undefined index: input
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:210 - Undefined index: hide
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:211 - Undefined index: noquotes
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:121 - Undefined index: href-replace
NOTICE: wp-content/plugins/easy-fancybox/easy-fancybox.php:215 - Undefined index: input