Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class "WP_Duotone" not found in /home/nc000710/public_html/sec/wp-includes/class-wp-hook.php:324 Stack trace: #0 /home/nc000710/public_html/sec/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array) #1 /home/nc000710/public_html/sec/wp-includes/blocks.php(674): apply_filters('block_type_meta...', Array, Array) #2 /home/nc000710/public_html/sec/wp-includes/blocks/legacy-widget.php(65): register_block_type_from_metadata('/home/nc000710/...', Array) #3 /home/nc000710/public_html/sec/wp-includes/class-wp-hook.php(324): register_block_core_legacy_widget('') #4 /home/nc000710/public_html/sec/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #5 /home/nc000710/public_html/sec/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /home/nc000710/public_html/sec/wp-settings.php(700): do_action('init') #7 /home/nc000710/public_html/sec/wp-config.php(105): require_once('/home/nc000710/...') #8 /home/nc000710/public_html/sec/wp-load.php(50): require_once('/home/nc000710/...') #9 /home/nc000710/public_html/sec/wp-blog-header.php(13): require_once('/home/nc000710/...') #10 /home/nc000710/public_html/sec/index.php(17): require('/home/nc000710/...') #11 {main} thrown in /home/nc000710/public_html/sec/wp-includes/class-wp-hook.php on line 324