HUD and score have gone missing in UnrealScript

Question

I am a student at Full Sail so I don't want just the solution; I want to understand the problem. I am working from tutorial videos where we are supposed to have a HUD, a score, and a timer. When I first started, my player had a gun and a HUD. As I worked through the videos, the HUD changed, the score showed up but the HUD disappeared. Now the score disappeared as well as well as the HUD and I only have a gun. When I playtest it from Visual Studio, nothing shows up at all but when I load editor only the gun shows up.

This is the code setting up my game type

// Credit: Christopher Maxwell GameType W1 Video

class EricsMapGameType extends UTGame; //Sets game type as Unreal Tournament Game

var int myScore; // Sets myScore as a Variable Integer


defaultproperties // Sets the properties to default

{
    HUDType =class 'EricsMapInterfaceHud'  // Sets the interfacehud class to the Hudtype variable

    PlayerControllerClass = class' EricsMapInterfacePlayerController' // Sets the player controllers class into the the player class Variable

    DefaultPawnClass = class' EricsMapPawn' //Sets the maps custom pawn class to the default pawn variable

    bUseClassicHUD = true // Turns off the Flash Hud and allows use of custom Hud

}




//This is the code for my score, timer, and HUD
class EricsMapInterfaceHUD extends HUD; // EricsMapInterface class extends from Hud



var bool showCursor;

var const Texture2D CursorTexture;

var const Color CursorColor;

var Font m_HUDFont;

var Texture2D m_textureEX;



//------------------------------------------------
function DrawHUD()

{
    super.DrawHUD();
    drawMyScore();
    drawHUDText( "Hello!", 8);
    ericTexture();
}

//------------------------------------------------
function ericTexture()
{
    Canvas.SetPos(300,100);
    Canvas.SetDrawColor(255,255,255);
    Canvas.DrawTile(m_textureEX, 64, 64, 0, 16,  32, 16);
}


//------------------------------------------------
function drawHUDText(string _hudString, int _aNumber)
{
    local float textSizeX;
    local float textSizeY;
    local string ericText;



    ericText=_hudString @ _aNumber;


    Canvas.Font = m_HUDFont;
    Canvas.TextSize(ericText, textSizeX, textSizeY, 0.1, 0.1);
    Canvas.SetPos((Canvas.SizeX/2) - (textSizeX/2),(Canvas.SizeY/2) - (textSizeY/2));

    Canvas.SetDrawColor (255,0,0);
    Canvas.DrawText(ericText,,0.1,0.1);

}


//------------------------------------------------
function DrawMyScore()

{
    local WorldInfo rWorldInfo;
    local EricsMapGameType rGame;
    local int nScore;

    rWorldInfo = class 'WorldInfo' .static.GetWorldInfo(); 
    if(rGame != none)
    {
        rGame=EricsMapGameType(rWorldInfo.Game); // Turns the generic game into the custom game
        if(rGame!=none) //If not custome game goes back to original map
        {
        nScore = rGame.myScore;
        }
    }



    Canvas.SetPos(10,10);
    Canvas.Font = class 'Engine' .static.GetMediumFont();
    Canvas.SetDrawColor(255,0,0);

    Canvas.DrawText("Score:" @nScore);
}

//------------------------------------------------
event PostRender()
{
//  Canvas.SetPos(MouseInterfacePlayerInput.MousePosition.X,MouseInterfacePlayerInput.MousePosition.Y); //Gives me a bad or missing expression call to SetPos
    Canvas.DrawColor = CursorColor; //Draws cursor color
    Canvas.DrawTile(CursorTexture, CursorTexture.SizeX, CursorTexture.SizeY,0.f,0.f,CursorTexture.SizeX, CursorTexture.SizeY,, true);

}

defaultproperties
{
    CursorColor=(255,0,0,);
    CursorTexture=Texture2D'EngineResources.Cursors.Arrow';
    showCursor=true;
    m_HUDFont = Font'UI_Fonts.Fonts.UI_Fonts_Positec14';
    m_textureEX = Texture2D'UDKHUD.skull'

}

Please don't just tell me the answer; help me understand the answer.