Fatal error: Uncaught Error: Call to a member function get_currency_codes() on null in /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woo-payu-payment-gateway/includes/class-woocommerce-payu.php:94 Stack trace: #0 /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woo-payu-payment-gateway/includes/class-woocommerce-payu.php(26): WC_Gateway_PayU->init_form_fields() #1 /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woocommerce/includes/class-wc-payment-gateways.php(94): WC_Gateway_PayU->__construct() #2 /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woocommerce/includes/class-wc-payment-gateways.php(70): WC_Payment_Gateways->init() #3 /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woocommerce/includes/class-wc-payment-gateways.php(43): WC_Payment_Gateways->__construct() #4 /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woocommerce/includes/class-woocommerce.php(773): WC_Payment_Gateways::instance() #5 /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woocommerce in /home/wstgroup/domains/eurostudent-ok/wp-content/plugins/woo-payu-payment-gateway/includes/class-woocommerce-payu.php on line 94