Breadcrumb NavXT Polylang Extensions 1.5.9

Introducing Breadcrumb NavXT Polylang Extensions 1.5.9. A change in Polylang 3.8 caused a PHP error to be thrown with previous versions of Breadcrumb NavXT Polylang Extensions when on the Polylang Translations page. This version fixes the cause of that PHP error, improving compatibility with Polylang 3.8. Users with valid and activated license keys should receive [ ]