The latest version, but same problem was on WC 3.3.x. I update to the latest WC today, but same problem was yesterday.
`2018-06-15T12:55:33+00:00 CRITICAL Uncaught Error: Call to undefined function mycryptocheckout\ecommerce\woocommerce\woocommerce_settings_get_option() in /data/web/virtuals/182519/virtual/www/wp-content/plugins/mycryptocheckout/src/ecommerce/woocommerce/WooCommerce.php:50
Stack trace:
#0 /data/web/virtuals/182519/virtual/www/wp-content/plugins/mycryptocheckout/src/ecommerce/woocommerce/WC_Gateway_MyCryptoCheckout.php(256): mycryptocheckout\ecommerce\woocommerce\WooCommerce->check_decimal_setting()
#1 /data/web/virtuals/182519/virtual/www/wp-content/plugins/mycryptocheckout/src/ecommerce/woocommerce/WC_Gateway_MyCryptoCheckout.php(21): WC_Gateway_MyCryptoCheckout->get_method_description()
#2 /data/web/virtuals/182519/virtual/www/wp-content/plugins/woocommerce/includes/class-wc-payment-gateways.php(105): WC_Gateway_MyCryptoCheckout->__construct()
#3 /data/web/virtuals/182519/virtual/www/wp-content/plugins/woocommerce/includes/class-wc-payment-gateways.php(67): WC_Payment_Gateways->init()
#4 /data/web/virtuals/182519/virtual/www/wp-content/plugin
See it is from 15 June with WC 3.3.x, it starts to happened when I update both plugins, but only MCC reports problems in log. I will try to reinstall plugin tomorrow, but I did not make any big changes since 2.09 version.