I am using another platform called Pressero and I am getting the same error message for all of my storefronts.
If I keep trying eventually the shipping works but most of the time I get the 80040B18 error like you.
This is the only mention of that error I could find on Google in the last 24 hours.
Perhaps it’s a USPS issue?
Looks like it was the hompage slider that was causing the conflict. I got rid of that slider and am using Smart Slider 3 instead. Everything is working like it should now.
Well, I figured out the memory problem which was due to code I had in the child theme’s functions.php file.
The problem now is that there are no errors and everything seems in order, but the translation will not show.
I’m using this plugin to be able to change a button to say “Read More” instead of “Details” which I set it up to do and generated a new .mo file, but no luck.