Fatal error: Uncaught Error: Object of class WP_Error could not be converted to string in /var/www/html/hancalligraphy/wp-content/themes/gokha/inc/classes/grada-portfolio.php:135 Stack trace: #0 /var/www/html/hancalligraphy/wp-content/themes/gokha/tpls/portfolio/widgets/style-grid.php(28): Gokha_Portfolio->the_categories() #1 /var/www/html/hancalligraphy/wp-includes/template.php(812): require('/var/www/html/h...') #2 /var/www/html/hancalligraphy/wp-includes/template.php(745): load_template() #3 /var/www/html/hancalligraphy/wp-includes/general-template.php(206): locate_template() #4 /var/www/html/hancalligraphy/wp-content/themes/gokha/inc/elementor/widgets/posts/portfolio.php(468): get_template_part() #5 /var/www/html/hancalligraphy/wp-content/plugins/elementor/includes/base/controls-stack.php(2374): Gokha_Elementor\Widget_Portfolio->render() #6 /var/www/html/hancalligraphy/wp-content/plugins/elementor/includes/base/widget-base.php(636): Elementor\Controls_Stack->render_by_mode() #7 /var/www/html/hancalligraphy/wp-content/ in /var/www/html/hancalligraphy/wp-content/themes/gokha/inc/classes/grada-portfolio.php on line 135