Plugin not working

Array ( [popup_flag] => true_0152 [captcha] => 89b89 [woocs_first_unique_visit] => 1 [woocs_current_currency] => EUR [woocs_default_currency] => USD [optionaltotalprice] => 0 [newquant] => 1 [prdiscount] => 5 ) After plugin activation, I am getting this array.. Plugin is not working

https://wordpress.org/plugins/woocommerce-currency-switcher/