Fatal error: Uncaught Error: Class 'WC_Shipping_Method' not found in /home/customer/www/rainfallsimulator.com/public_html/wp-content/plugins/flexible-shipping-ups/vendor_prefixed/wpdesk/wp-woocommerce-shipping/src/WooCommerceShipping/ShippingMethod.php:28 Stack trace: #0 /home/customer/www/rainfallsimulator.com/public_html/wp-content/plugins/flexible-shipping-ups/vendor/composer/ClassLoader.php(578): include() #1 /home/customer/www/rainfallsimulator.com/public_html/wp-content/plugins/flexible-shipping-ups/vendor/composer/ClassLoader.php(432): Composer\Autoload\ClassLoader::Composer\Autoload\{closure}('/home/customer/...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('UpsFreeVendor\\W...') #3 /home/customer/www/rainfallsimulator.com/public_html/wp-content/plugins/flexible-shipping-ups/vendor_prefixed/wpdesk/wp-ups-shipping-method/src/WooCommerceShipping/Ups/UpsShippingMethod.php(22): spl_autoload_call('UpsFreeVendor\\W...') #4 /home/customer/www/rainfallsimulator.com/public_html/wp-content/plugins/flexi in /home/customer/www/rainfallsimulator.com/public_html/wp-content/plugins/flexible-shipping-ups/vendor_prefixed/wpdesk/wp-woocommerce-shipping/src/WooCommerceShipping/ShippingMethod.php on line 28