Fatal error: Uncaught Error: Call to undefined function wp_theme_has_theme_json() in /wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php:62 Stack trace: #0 /wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php(49): uaf_update_theme_json_font(Array) #1 /wp-content/plugins/use-any-font/includes/functions/uaf_font_functions.php(242): uaf_block_editor_custom_fonts() #2 /wp-content/plugins/use-any-font/includes/functions/uaf_admin_functions.php(137): uaf_write_css() #3 /wp-includes/class-wp-hook.php(307): uaf_plugin_initialize('') #4 /wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(Object(RegenerateThumbnails), Array) #5 /wp-includes/plugin.php(474): WP_Hook->do_action(Array) #6 /wp-settings.php(587): do_action('init') #7 /wp-config.php(95): require_once('/wp-settings.ph...') #8 /wp-load.php(50): require_once('/wp-config.php') #9 /wp-blog-header.php(13): require_once('/wp-load.php') #10 /index.php(17): require('/wp-blog-header...') #11 {main} thrown in /wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php on line 62