Brad is right and I'll just make one more point about it.
Every year, the following question is on the NF exam.
Points scored, consumed time and additional activity, which may occur prior to the recognition of an error, shall not be nullified.
The answer is true, true true! Never take points scored of the board unless the point(s) score are indeed the actual error, such as when the wrong shooter hits a FT(s).
I bet you handle it a lot better the next time it happens!