apply_filters(Array, Array) #2 /srv/psa02/machteldjacques.com/httpdocs/wp-includes/post-template.php(547): apply_filters('post_class', Array, Array, 680) #3 /srv/psa02/machteldjacques.com/httpdocs/wp-includes/post-template.php(427): get_post_class(Array, NULL) #4 /srv/psa02/machteldjacques.com/httpdocs/wp-content/themes/doctype/content-portfolio.php(8): post_class('grid-4') #5 /srv/psa02/machteldjacques.com/httpdocs/wp-includes/template.php(690): require('/srv/psa02/mach...') #6 /srv/psa02/machteldjacques.com/httpdocs/wp-includes/template.php(647): load_template('/srv/psa02/mach...', false) #7 /srv/psa02/machteldjacques.com/httpdocs/wp-includes/general-template.p in /srv/psa02/machteldjacques.com/httpdocs/wp-content/themes/doctype/functions.php on line 214