No parameters in shortcode results in error

Hello ,

when shortcodes are used and no parameters passed e.g. [woocs] an error is thrown :

"WARNING: wp-content/plugins/woocommerce-currency-switcher/index.php:1384 - extract() expects parameter 1 to be array, string given
require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/var/www/themes_archive/Bishop/bishop/page.php'), get_header, locate_template, load_template, require_once('/var/www/themes_archive/Bishop/bishop/header.php'), get_template_part, locate_template, load_template, require('/var/www/themes_archive/Bishop/bishop/theme_includes/site-currency.php'), do_shortcode, preg_replace_callback, do_shortcode_tag, call_user_func, WOOCS->woocs_shortcode, WOOCS->render_html, extract"

Fixed by checking if $args are empty declare it as array.

//[woocs]
    public function woocs_shortcode($args)
    {
        if(empty($args))
            $args = array();
        return $this->render_html(WOOCS_PATH . 'views/shortcodes/woocs.php', $args);
    }

Better if you would use the shortcode_atts() to declare defaults.

https://www.ads-software.com/plugins/woocommerce-currency-switcher/