plugin blocking communication with printful.com and paypal

When we contacted our server about problems our print on demand store was having communicating with our store and PayPal not receiving tracking information, we were told that this plug in was blocking those communications. Is there a setting that I am not seeing that would allow these to communicate with my WooCommerce store?

My operating WordPress theme is Elegant Themes Divi and I am using the WooCommerce plugin for WordPress on my site.