The real disaster is management. This thing was working perfectly, and therefore was ignored. Then it became a frantic crisis because nobody saw that some other change would break it.

And then they responded with an absence of reality. A two-week deadline that can't be moved? Um, no. Ever hear of reality? You might visit there sometime. It's a bit harsh on people with ridiculous demands, though, so adjust your attitude before you go.

And then, nobody can fix the existing one? You not only have the ridiculous demand, you rule out the only possible way of meeting it? What do you think is going to happen, the elves are going to work all night to magically create a solution?

This sounds like an epic management failure from start to finish.