Custom Meta Box Causing Error: “Are you sure you want to do this? Please try again.”

so you need to correct your nonce field add a second pram nonce name, more information on WordPress codex here

// wp nonce field
wp_nonce_field( $action, $name, $referer, $echo );

// replace yours with below
wp_nonce_field( 'ind_pricing_table_box_nonce', 'ind_pricing_nonce' );

now verify your nonce, more info here

wp_verify_nonce( $nonce, $action );

// replace yours with below
if (!wp_verify_nonce( $_POST['ind_pricing_nonce'], 'ind_pricing_table_box_nonce' )) {
    return $post_id;
}