portfolio Masonry 100%

Fatal error: Uncaught Error: Call to undefined function get_thegem_portfolio_render_item_classes() in /home/customer/www/caroseditorial.com/public_html/wp-content/plugins/thegem-elements/inc/content.php:754 Stack trace: #0 /home/customer/www/caroseditorial.com/public_html/wp-content/plugins/thegem-elements/inc/shortcodes/shortcodes.php(22002): thegem_portfolio(Array) #1 /home/customer/www/caroseditorial.com/public_html/wp-includes/shortcodes.php(356): thegem_portfolio_shortcode(Array, '', 'gem_portfolio') #2 [internal function]: do_shortcode_tag(Array) #3 /home/customer/www/caroseditorial.com/public_html/wp-includes/shortcodes.php(228): preg_replace_callback('/\\[(\\[?)(gem_po...', 'do_shortcode_ta...', '[vc_row_inner][...') #4 /home/customer/www/caroseditorial.com/public_html/wp-content/plugins/thegem-elements/inc/shortcodes/shortcodes.php(878): do_shortcode('[vc_row_inner][...') #5 /home/customer/www/caroseditorial.com/public_html/wp-includes/shortcodes.php(356): thegem_textbox_shortcode(Array, '[vc_row_inner][...', 'ge in /home/customer/www/caroseditorial.com/public_html/wp-content/plugins/thegem-elements/inc/content.php on line 754