Fatal error: Uncaught Error: Class "WC_Payment_Gateway" not found in /root/sklofar/wp-content/themes/sklofar/inc/class-wc-gateway-prepay.php:13 Stack trace: #0 /root/sklofar/wp-content/themes/sklofar/functions.php(21): require_once() #1 /root/sklofar/wp-settings.php(600): include('...') #2 /root/sklofar/wp-config.php(172): require_once('...') #3 /root/sklofar/wp-load.php(50): require_once('...') #4 /root/sklofar/wp-blog-header.php(13): require_once('...') #5 /root/sklofar/index.php(20): require('...') #6 {main} thrown in /root/sklofar/wp-content/themes/sklofar/inc/class-wc-gateway-prepay.php on line 13