Fatal error: Uncaught Error: Call to undefined function wp_theme_has_theme_json() in /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php:78 Stack trace: #0 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php(42): Cartflows_Init_Blocks->__construct() #1 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php(587): Cartflows_Init_Blocks::get_instance() #2 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-block-loader.php(64): require_once('...') #3 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-block-loader.php(44): Cartflows_Block_Loader->load_plugin() #4 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-block-loader.php(31): Cartflows_Block_Loader->__construct() #5 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-block-loader.php(76): Cartflows_Block_Loader::get_instance() #6 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/classes/class-cartflows-loader.php(469): include_once('...') #7 /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/classes/class-cartflows-loader.php(240): Cartflows_Loader->load_core_files() #8 /webroot/j/a/jackl002/bahna/www/wp-includes/class-wp-hook.php(303): Cartflows_Loader->load_plugin() #9 /webroot/j/a/jackl002/bahna/www/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters() #10 /webroot/j/a/jackl002/bahna/www/wp-includes/plugin.php(470): WP_Hook->do_action() #11 /webroot/j/a/jackl002/bahna/www/wp-settings.php(441): do_action() #12 /webroot/j/a/jackl002/bahna/www/wp-config.php(112): require_once('...') #13 /webroot/j/a/jackl002/bahna/www/wp-load.php(50): require_once('...') #14 /webroot/j/a/jackl002/bahna/www/wp-blog-header.php(13): require_once('...') #15 /webroot/j/a/jackl002/bahna/www/index.php(17): require('...') #16 {main} thrown in /webroot/j/a/jackl002/bahna/www/wp-content/plugins/cartflows/modules/gutenberg/classes/class-cartflows-init-blocks.php on line 78