I am struggling with my eCommerce store and I would like some help. 

First, I am receiving a couple of error messages that I can't figure out. Here is a screenshot of the one I'm most worried about.

I attempted to use a prime image and this was the error I received when trying to export the finished product. I have since replaced the image with a free one and I'm still receiving this error. I have plenty of credits but when I went to pay for the first image, or even click on the buy button, I get a generic error code.

My next question is about using file share links for digital downloads. I have put in several weeks worth of labor time to add digital photos for sale in my online store and I have set up a special shared folder on my server and set up shared code links through gofile.me for customers to download their purchases. Is this going to work through your servers? I ask because I had one shared code link error that went away after I clicked ignore and exported the website. I'll find out shortly if it returns when I export again. That link that your server didn't like by the way, isn't attached to any of my products so it is likely some stray in the cache memory somewhere. I have attached a screenshot for your review.

My last question is about taxes. I am based in the U.S. but I might be selling products to the EU, Australia and Canada. I reviewed the help articles on setting up VAT for those who require it but what about US sales taxes? Is there something I can set up for that? Each state here has their own state sales tax amount. I was told by a US government official that I don't have to levy a sales tax for someone who buys something from another state as the customer is responsible for the sales tax. I know from my own experience that in intrastate commerce, the sales tax must be listed and paid by the customer. Can you help with that? It's a minor issue but I thought I would ask.

With regard to VAT taxes, should I use the VAT included option or VAT excluded option for selling to the EU from the US? Your set up help article wasn't clear about that.

The website is https://crann-na-beatha.com