It is hard to tell, but it looks like you have three contours left. The accent and two that once represented the A. You need to have only two.
I think it is easiest if you start all over and make sure you don't remove points you wish to keep. The manual has a lot of information about how to manipulate points. See the online manual: http://www.high-logic.com/fontcreator/manual7/simpleglyphsintroduction.html
Alternatively you can add points to the outer contour of the A, and remove the inner contour.