Fatal error: Uncaught Error: Call to undefined function wp_theme_has_theme_json() in /home/customer/www/annahartmmb.dfgtemplates.com/public_html/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php:78
Stack trace:
#0 /home/customer/www/annahartmmb.dfgtemplates.com/public_html/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php(42): Cartflows_Init_Blocks->__construct()
#1 /home/customer/www/annahartmmb.dfgtemplates.com/public_html/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php(582): Cartflows_Init_Blocks::get_instance()
#2 /home/customer/www/annahartmmb.dfgtemplates.com/public_html/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-block-loader.php(64): require_once('/home/customer/...')
#3 /home/customer/www/annahartmmb.dfgtemplates.com/public_html/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-block-loader.php(44): Cartflows_Block_Loader->load_plugin()
#4 /home/customer/ in /home/customer/www/annahartmmb.dfgtemplates.com/public_html/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php on line 78