Fatal error: Uncaught Error: Call to undefined function get_classic_theme_supports_block_editor_settings() in /home4/dujana90/public_html/test/wp-includes/class-wp-theme-json-resolver.php:289 Stack trace: #0 /home4/dujana90/public_html/test/wp-includes/class-wp-theme-json-resolver.php(591): WP_Theme_JSON_Resolver::get_theme_data() #1 /home4/dujana90/public_html/test/wp-includes/global-styles-and-settings.php(182): WP_Theme_JSON_Resolver::get_merged_data() #2 /home4/dujana90/public_html/test/wp-includes/script-loader.php(2467): wp_get_global_stylesheet() #3 /home4/dujana90/public_html/test/wp-includes/class-wp-hook.php(310): wp_enqueue_global_styles('') #4 /home4/dujana90/public_html/test/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #5 /home4/dujana90/public_html/test/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /home4/dujana90/public_html/test/wp-includes/script-loader.php(2225): do_action('wp_enqueue_scri...') #7 /home4/dujana90/public_html/test/wp-includes/class-wp-hook.php(310): wp_enqueue_scripts('') #8 /home4/dujana90/public_html/test/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters('', Array) #9 /home4/dujana90/public_html/test/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #10 /home4/dujana90/public_html/test/wp-includes/general-template.php(3053): do_action('wp_head') #11 /home4/dujana90/public_html/test/wp-content/themes/kallyas/header.php(12): wp_head() #12 /home4/dujana90/public_html/test/wp-includes/template.php(785): require_once('/home4/dujana90...') #13 /home4/dujana90/public_html/test/wp-includes/template.php(720): load_template('/home4/dujana90...', true, Array) #14 /home4/dujana90/public_html/test/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #15 /home4/dujana90/public_html/test/wp-content/themes/kallyas/framework/zion-builder/inc/index-page-builder.php(2): get_header() #16 /home4/dujana90/public_html/test/wp-includes/template-loader.php(106): include('/home4/dujana90...') #17 /home4/dujana90/public_html/test/wp-blog-header.php(19): require_once('/home4/dujana90...') #18 /home4/dujana90/public_html/test/index.php(41): require('/home4/dujana90...') #19 {main} thrown in /home4/dujana90/public_html/test/wp-includes/class-wp-theme-json-resolver.php on line 289