Portfolio BG Image Grid

Fatal error: Uncaught Error: Call to undefined function fincorbus_portfolio_filter() in /home/storage/5/30/95/prophp1/public_html/wp-content/plugins/evatheme-core/includes/framework/evatheme-vc-extension/includes/shortcodes/evatheme_portfolio.php:58 Stack trace: #0 /home/storage/5/30/95/prophp1/public_html/wp-includes/shortcodes.php(343): cstheme_vc_portfolio_shortcode(Array, '', 'cstheme_vc_port...') #1 [internal function]: do_shortcode_tag(Array) #2 /home/storage/5/30/95/prophp1/public_html/wp-includes/shortcodes.php(218): preg_replace_callback('/\\[(\\[?)(csthem...', 'do_shortcode_ta...', '[cstheme_vc_por...') #3 /home/storage/5/30/95/prophp1/public_html/wp-content/plugins/js_composer/include/helpers/helpers.php(240): do_shortcode('[cstheme_vc_por...') #4 /home/storage/5/30/95/prophp1/public_html/wp-content/plugins/js_composer/include/templates/shortcodes/vc_column.php(94): wpb_js_remove_wpautop('[cstheme_vc_por...') #5 /home/storage/5/30/95/prophp1/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/ in /home/storage/5/30/95/prophp1/public_html/wp-content/plugins/evatheme-core/includes/framework/evatheme-vc-extension/includes/shortcodes/evatheme_portfolio.php on line 58