It would still be cheaper and safer to sit a few people down, go over every error code and map them to the correct issue.
Yes, you have to do this for every implementation, but what do you think other businesses do? There are software developers (I got offered a job like that once and declined) who do nothing else than map action x to machine signals y and z. You only have to do this once per machine of course, but it’s still shitty work.
A thousand times more reliable than letting text processing AI try and make a best guess based on the error message (which is honestly insanity).
This is probably marketing crap anyway. Either their solution is brittle and breaks on a real error, or they already hardcoded the most important error codes and the rest is fluff.