Someone knows how to solve this error? I'm trying to use a torch to light the place, but this error is happening = / I've tried everything

Code:
private int ID = -1;
TiledMap map;
private Image alphaMap;
private Color sharedColor = new Color(1f, 1f, 1f, 1f);
public Gameplay(int ID)
{
this.ID = ID;
}
public int getID()
{
return this.ID;
}
public void init(GameContainer container, StateBasedGame game) throws SlickException
{
map = new TiledMap("resource/maps/teste.tmx");
alphaMap = new Image("resource/lighting_sprites.png", false, Image.FILTER_NEAREST).getSubImage(0, 40 + 2, 256,256);
}
public void update(GameContainer container, StateBasedGame game, int delta) throws SlickException
{
}
public void render(GameContainer container, StateBasedGame game, Graphics g) throws SlickException
{
g.setDrawMode(Graphics.MODE_ALPHA_MAP);
g.clearAlphaMap();
alphaMap.draw(container.getInput().getAbsoluteMouseX(), container.getInput().getAbsoluteMouseY(), 220,220, sharedColor);
g.setClip(container.getInput().getAbsoluteMouseX(), container.getInput().getAbsoluteMouseY(), 220,220);
g.setDrawMode(Graphics.MODE_ALPHA_BLEND);
map.render(32, 32);
g.clearClip();
}