Quote Originally Posted by rayw1679 View Post
What is the impact of this error? Does it prevent the order from being completed, or just have the possibility of incorrect data? (We use flat-rate shipping, so we shouldn't be invoking any special calculations; however, we've had 10 of these errors within the past 2 months.) The fix appears extensive, and I don't want to break my store applying the fix (I'm good at that) if it's not a severe problem.
I haven't done the extensive fix yet, but what I will do, is backup the files first, make the changes, then upload. If there is a problem, I will go right back to my backup files.

I have had this error show up when there was no order, so it could be affecting sales.