Infused Woo Syncing Orders Error

Hi. Hope someone can help me. I have been trying to sync orders from woocommerce to Keap using InfusedWoo, but i have been getting error at about 75% and it sends purchase receipt to our customers. It has been a headache, that we have to explain to our customers that it was from an error and they were not double charged.

It is giving that cloudflare error

Hope someone can help. Thanks!