Drupal 7 Views Isotope Error
Error is as stated..

Warning: in_array() expects parameter 2 to be array, string given in goodnex_item_list() (line 212 of /home/biltrite/public_html/sites/all/themes/goodnex/template.php)


Whatever is calling in_array in goodnex_item_list is not passing an array as the second argument and instead is passing a string. You'll have to backtrack from there to figure out what and why.

See: in_array