estos son los errores:

Notice: add_submenu_page ha sido llamada de forma incorrecta. El séptimo parámetro pasado a <code>add_submenu_page()</code> debe ser un número entero que represente la posición del menú. Por favor, visita Depuración en WordPress para más información. (Este mensaje fue añadido en la versión 5.3.0). in /home/itecedue/public_html/wp-includes/functions.php on line 5311

Warning: Cannot modify header information – headers already sent by (output started at /home/itecedue/public_html/wp-includes/functions.php:5311) in /home/itecedue/public_html/wp-includes/functions.php on line 6360

Warning: Cannot modify header information – headers already sent by (output started at /home/itecedue/public_html/wp-includes/functions.php:5311) in /home/itecedue/public_html/wp-admin/includes/misc.php on line 1310

Warning: Cannot modify header information – headers already sent by (output started at /home/itecedue/public_html/wp-includes/functions.php:5311) in /home/itecedue/public_html/wp-admin/admin-header.php on line 9

Warning: Cannot modify header information – headers already sent by (output started at /home/itecedue/public_html/wp-includes/functions.php:5311) in /home/itecedue/public_html/wp-includes/option.php on line 1051

Warning: Cannot modify header information – headers already sent by (output started at /home/itecedue/public_html/wp-includes/functions.php:5311) in /home/itecedue/public_html/wp-includes/option.php on line 1052