Fatal error: Uncaught Error: Class 'WC_Payment_Gateway' not found in /home/athpfkmy/public_html/resinpro.pl/wp-content/plugins/woocommerce-paypal-payments/modules/ppcp-compat/src/PPEC/MockGateway.php:13 Stack trace: #0 {main} thrown in /home/athpfkmy/public_html/resinpro.pl/wp-content/plugins/woocommerce-paypal-payments/modules/ppcp-compat/src/PPEC/MockGateway.php on line 13