Adobe Animate Advanced Layers button errors

I was almost finished creating my first animation in adobe animate using Action Script 3.0 when I ran into a problem coding my buttons. I am trying to create a game that is determined on the decisions the audience makes while watching and interacting with the animation. There are points in the game where the main character stops and there are two buttons that appear so the audience can choose between them to either progress the story along or end it abruptly with a game over and restart button. My first button on frame 1 to start the game goes without any errors or problems, every one after that seem to not work and give me this error message... 

Scene 1, Layer 'Actions', Frame 219, Line 17, Column 1 1120: Access of undefined property btn_bub_NO.

I read pretty thoroughly into adobes help center on this issue, something having to do with advanced layers and turning them off, but that is the last thing I want to do because it eliminates my chance of using the camera tool. Please if anyone can help with this it would be very much appreciated.