Order couldn’t be processed

For the past month my orders have not been coming through properly. I have tried to discuss this with snipcart support but they say the issue is on my website end and we have hit a dead end. My site is hosted on Netlify. Snipcart says the issue is when snipcart tries to crawl my website to verify the price for their order validation process, that it cannot reach my site. Snipcart support calls it “random domain downtime” on my website. My website works fine otherwise and I don’t know what could be causing this issue. Has anyone else experienced this or has an idea how to fix it? Thank you so much

The error message my customers get when trying to place orders is:

"Order couldn’t be processed.

You have not been charged. Please contact the store owner for details."