Warning: call_user_func_array() expects parameter 1 to be a valid callback, function '_wp_register_default_icon_collections' not found or invalid function name in /data/user/htdocs/wp-includes/class-wp-hook.php on line 353

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function '_wp_register_default_icons' not found or invalid function name in /data/user/htdocs/wp-includes/class-wp-hook.php on line 353

Fatal error: Uncaught TypeError: substr() expects parameter 1 to be string, int given in /data/user/htdocs/wp-content/plugins/wp-rocket/inc/ThirdParty/Plugins/CDN/Cloudflare.php:496 Stack trace: #0 /data/user/htdocs/wp-content/plugins/wp-rocket/inc/ThirdParty/Plugins/CDN/Cloudflare.php(496): substr(17848, -24) #1 /data/user/htdocs/wp-content/plugins/wp-rocket/inc/ThirdParty/Plugins/CDN/Cloudflare.php(469): WP_Rocket\ThirdParty\Plugins\CDN\Cloudflare->unregister_callback('deleted_post', 'purgeCacheByRel...') #2 /data/user/htdocs/wp-includes/class-wp-hook.php(353): WP_Rocket\ThirdParty\Plugins\CDN\Cloudflare->unregister_cloudflare_clean_on_post('') #3 /data/user/htdocs/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters(NULL, Array) #4 /data/user/htdocs/wp-includes/plugin.php(523): WP_Hook->do_action(Array) #5 /data/user/htdocs/wp-settings.php(771): do_action('init') #6 /data/user/htdocs/wp-config.php(108): require_once('/data/user/htdo...') #7 /data/user/htdocs/wp-load.php(50): require_once('/data/user/htdo...') #8 in /data/user/htdocs/wp-content/plugins/wp-rocket/inc/ThirdParty/Plugins/CDN/Cloudflare.php on line 496