Fatal error: Uncaught Error: Call to undefined function is_shop() in /var/www/html/wp-content/themes/minimal-grid/inc/template-tags.php:228 Stack trace: #0 /var/www/html/wp-includes/class-wp-hook.php(286): minimal_grid_archive_title('Mes: mayo 2016') #1 /var/www/html/wp-includes/plugin.php(208): WP_Hook->apply_filters('Mes: mayo 2016', Array) #2 /var/www/html/wp-includes/general-template.php(1553): apply_filters('get_the_archive...', 'Mes: mayo 2016') #3 /var/www/html/wp-includes/general-template.php(1482): get_the_archive_title() #4 /var/www/html/wp-content/themes/minimal-grid/inc/hooks/inner-header.php(55): the_archive_title('<h1 class="entr...', '</h1>') #5 /var/www/html/wp-includes/class-wp-hook.php(286): minimal_grid_display_inner_header('') #6 /var/www/html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #7 /var/www/html/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #8 /var/www/html/wp-content/themes/minimal-grid/header.php(198): do_action('minimal_grid_in...') #9 /var/www/html/wp-incl in /var/www/html/wp-content/themes/minimal-grid/inc/template-tags.php on line 228