Getting error message 1119/1120, from CS4 to new CC professional

Hi all, I did a flash website for a friend while in college using CS4, now she wants some updates so I opened the original file in flash CC professional. AND NOTHING SEEMS WORKING ANYMORE.

I keep getting errors 1119 and 1120. I have no idea how to fix them since I didn't know much back then and never keep up with the program.

Here is my coding:

btshoemovie.onRelease = function (){

          gotoAndPlay ("shoes")

}

Flash keeps telling me error through 1119 and mentioned simplebutton, which I have no idea with.

Also I have a preload bar using the code as follows:

this.onEnterFrame = function() {

filesize = mcnun.getBytesTotal();

loaded = mcnun.getBytesLoaded();

preload._visible = true;

if (loaded != filesize) {

preload._xscale = 100*loaded/filesize;

} else {

preload._visible = false;

if (mcnun._alpha<100) {

mcnun._alpha += 10;

}

}

};

And now it's getting 1120 errors saying undefied property loaded and file size.

I really know little about Flash and I just want to help a photo friend upload her galleries to her site. Please explain as simple as possible. Thank you all very very much!