Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($function) must be a valid callback, class "WP_Duotone" not found in /home/57/22/3002257/web/wp/wp-includes/class-wp-hook.php:310 Stack trace: #0 /home/57/22/3002257/web/wp/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array) #1 /home/57/22/3002257/web/wp/wp-includes/blocks.php(543): apply_filters('block_type_meta...', Array, Array) #2 /home/57/22/3002257/web/wp/wp-includes/blocks/legacy-widget.php(62): register_block_type_from_metadata('/home/57/22/300...', Array) #3 /home/57/22/3002257/web/wp/wp-includes/class-wp-hook.php(310): register_block_core_legacy_widget('') #4 /home/57/22/3002257/web/wp/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #5 /home/57/22/3002257/web/wp/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /home/57/22/3002257/web/wp/wp-settings.php(617): do_action('init') #7 /home/57/22/3002257/web/wp/wp-config.php(80): require_once('/home/57/22/300...') #8 /home/57/22/3002257/web/wp/wp-load.php(50): require_once('/home/57/22/300...') #9 /home/57/22/3002257/web/wp/wp-blog-header.php(13): require_once('/home/57/22/300...') #10 /home/57/22/3002257/web/wp/index.php(17): require('/home/57/22/300...') #11 {main} thrown in /home/57/22/3002257/web/wp/wp-includes/class-wp-hook.php on line 310