Can’t translate a string

Hello
Can’t translate the “Out of stock” for a variable product! Even using functions.php

function custom_text_replace( $translated_text, $untranslated_text, $domain ) {
    switch ( $untranslated_text ) {
        case 'Rupture de stock':
            $translated_text = __( 'Bientôt disponible', $domain );
            break;
        // Leave the default case out when using languages other than en_US
        default:
            $translated_text = $untranslated_text;
            break;
    }
    return $translated_text;
}
add_filter( 'gettext', 'custom_text_replace', 20, 3 );

Thank you

• This topic was modified 21 hours, 11 minutes ago by dweb360.