Fatal error: Uncaught Error: Call to undefined function wp_is_block_theme() in /var/www/visualqms.com/public_html/wp-content/plugins/ultimate-addons-for-gutenberg/classes/class-uagb-front-assets.php:137 Stack trace: #0 /var/www/visualqms.com/public_html/wp-includes/class-wp-hook.php(303): UAGB_Front_Assets->enqueue_asset_files('') #1 /var/www/visualqms.com/public_html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #2 /var/www/visualqms.com/public_html/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #3 /var/www/visualqms.com/public_html/wp-includes/script-loader.php(2083): do_action('wp_enqueue_scri...') #4 /var/www/visualqms.com/public_html/wp-includes/class-wp-hook.php(303): wp_enqueue_scripts('') #5 /var/www/visualqms.com/public_html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #6 /var/www/visualqms.com/public_html/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #7 /var/www/visualqms.com/public_html/wp-includes/general-template.php(3015): do_action('wp_he in /var/www/visualqms.com/public_html/wp-content/plugins/ultimate-addons-for-gutenberg/classes/class-uagb-front-assets.php on line 137
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