Null value fatal error running command from WP-CLI

Hi,

Thanks for your theme maintenance.

Running any WP-CLI doctor check command, i.e.:

wp doctor check core-update

I get this error:

PHP Fatal error:  Uncaught TypeError: Return value of weaverx_get_cur_page_id() must be of the type string, null returned in /var/www/clients/client2/web52/web/wp-content/themes/weaver-xtreme/includes/lib-runtime.php:263
Stack trace:
#0 /var/www/clients/client2/web52/web/wp-content/themes/weaver-xtreme/functions.php(561): weaverx_get_cur_page_id()
#1 /var/www/clients/client2/web52/web/wp-includes/class-wp-hook.php(308): weaverx_enqueue_scripts_action()
#2 /var/www/clients/client2/web52/web/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#3 /var/www/clients/client2/web52/web/wp-includes/plugin.php(517): WP_Hook->do_action()
#4 /var/www/clients/client2/web52/web/wp-includes/script-loader.php(2194): do_action()
#5 /var/www/clients/client2/web52/web/wp-includes/class-wp-hook.php(308): wp_enqueue_scripts()
#6 /var/www/clients/client2/web52/web/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#7 /var/www/clients/client2/web52/web/wp-includes/plugin.php(517): WP_Hook->do_action()
#8 /var/www/clients/client2/w in /var/www/clients/client2/web52/web/wp-content/themes/weaver-xtreme/includes/lib-runtime.php on line 263

Related code is:

function weaverx_get_cur_page_id(): string
{
    global $weaverx_cur_page_ID;

    return $weaverx_cur_page_ID;
}

Checked on PHP versions 7.4 to 8.2.

I replaced the function in a child theme and this seems to work fine:

function weaverx_get_cur_page_id(): string
{
    global $weaverx_cur_page_ID;

    // Comprueba si la variable está definida y no es null
    if (isset($weaverx_cur_page_ID) && !is_null($weaverx_cur_page_ID)) {
        return $weaverx_cur_page_ID;
    }

    // En caso contrario, devuelve una cadena vacía
    return '';
}

Thank you.