Undefined index Error

Hi,

We are using a kirki customizer in our matrix theme.

We want to add new social icons into header top bar like: YouTube, Instagram

etc. using “Child-Theme”. We have added social icons option into

“functions.php” file into our “Child-Theme” directory.

This is a actual code in matrix-child theme.

function matrix_child_theme_setup()
{
Kirki::add_field('matrix_theme', array(
    'settings' => 'social_youtube_link',
    'label' => __('YouTube Link', 'matrix'),
    'section' => 'social_sec',
    'type' => 'url',
    'priority' => 10,
    'transport' => 'postMessage',
    'default' => 'http://www.youtube.com/',
    'sanitize_callback' => 'esc_url_raw'
));
Kirki::add_field('matrix_theme', array(
    'settings' => 'social_pinterest_link',
    'label' => __('Pinterest Link', 'matrix'),
    'section' => 'social_sec',
    'type' => 'url',
    'priority' => 10,
    'transport' => 'postMessage',
    'default' => 'http://www.pinterest.com/',
    'sanitize_callback' => 'esc_url_raw'
));
}
add_action('after_setup_theme', 'matrix_child_theme_setup');

But its show an error Undefined index: social_youtube_link

Undefined index: social_pinterest_link.

Then please let us know how we can define the above options using “Child-Theme”.

Please provide solution asap.

You can see our matrix theme package here:

Matrix

Thank you