The only person I've ever heard of being fired for an operational error was a principal networking engineer at Amazon who end-ran DNS policies and hand-edited a zone file. Somehow, the file got truncated. It brought down everything including the soft phones so people couldn't even spin up a phone-based conference call to deal with it. I think Amazon was down for several hours, with 8 digit losses. That was in the mid 2000's. Heard that person was fired but don't know for sure.
If a single person can cause the failure during the course of their normal tasks, it's not the fault of that person it's the fault of designers of the systems and processes used by that person.
This question doesn't deserve downvotes. While the answer is quite clearly in the negative (this will be a process failure, not a human failure), it looks as though it was asked in good faith, and might not be so obvious to those outside the industry.
Vote buttons are not a substitute for proper responses to legitimate enquiry.
How could anyone answer that question? We don't even know that an engineer made a mistake in the first place, much less what the mistake was and what led up to it.