Can't figure out why I'm getting an Error #1009

programming flash
1

Hi I’m still relativity new to Flash. But what I’m doing is trying to create a website for my church. I’m working on one part of it right now and that’s the fellowship page. I have a couple of backgrounds on the very first scene and a main movie clip which contains the info. Inside the main movie clip time line I have it set up so that when I click on a button “More Info” it advances to a another movie clip on the time line. That movie clip contains a button labeled “back” which is supposed to go back to frame 1 when clicked.

One of the problems I’m having inside the main movie clip time line is when I go to test the movie I get this error :

Error #1009: Cannot access a property or method of a null object reference.
at Fellowship_fla::content_mc_3/Fellowship_fla::frame1()

But oddly enough it will still advance along the time line when I click the “more info” button but when I click the back button nothing happens.

Here is my code:

stop();
BT_MInfo_btn.addEventListener(MouseEvent.CLICK, BibleTalkClick);
ND_MInfo_btn.addEventListener(MouseEvent.CLICK, NoonDayClick);
BS_MInfo_btn.addEventListener(MouseEvent.CLICK, BibleStudyClick);
Back_btn.addEventListener(MouseEvent.CLICK, BackClick);

function BibleTalkClick(e:MouseEvent):void
{
        gotoAndPlay("talk");
}

function NoonDayClick(e:MouseEvent):void
{
        gotoAndPlay("Hour");
}

function BibleStudyClick(e:MouseEvent):void
{
        gotoAndPlay("Study");
}

function BackClick(e:MouseEvent):void
{
        gotoAndStop(1);
}

And here is my source file if that helps to get a better idea of what I’m talking about:

Thanks a lot for any help that can be given