Colours not appearing as coded in published game on website.

I just published the snake game. https://codegym.cc/projects/apps/36280 For some reason, Monty the snake isn't changing colour anymore when he eats the mushroom, or flashing when the invincibility is about to wear off, now that it's published. :( It works perfectly when I run it from Intellij. Would anyone know why this is, so I can avoid this issue in future games? Draw method below. Ps sorry for the long-winded code - I guess I could have made a variable for the colour parameter!

public void draw(Game game){
        for (GameObject part : snakeParts){
            if (isAlive && !isPowerUp) {
                if (snakeParts.indexOf(part) == 0)
                    game.setCellValueEx(part.x, part.y, Color.NONE, HEAD_SIGN, Color.LAWNGREEN, 75);
                else game.setCellValueEx(part.x, part.y, Color.NONE, BODY_SIGN, Color.LAWNGREEN, 75);
            }
            else if (isPowerUp) {
                if (SnakeGame.powerCount > 50) {

                    if (SnakeGame.colorFlash % 2 == 0) {
                        if (snakeParts.indexOf(part) == 0)
                            game.setCellValueEx(part.x, part.y, Color.NONE, HEAD_SIGN, Color.YELLOW, 75);
                        else game.setCellValueEx(part.x, part.y, Color.NONE, BODY_SIGN, Color.YELLOW, 75);
                    } else {
                        if (snakeParts.indexOf(part) == 0)
                            game.setCellValueEx(part.x, part.y, Color.NONE, HEAD_SIGN, Color.PINK, 75);
                        else game.setCellValueEx(part.x, part.y, Color.NONE, BODY_SIGN, Color.PINK, 75);
                    }
                }
                else {
                    if (snakeParts.indexOf(part) == 0)
                        game.setCellValueEx(part.x, part.y, Color.NONE, HEAD_SIGN, Color.YELLOW, 75);
                    else game.setCellValueEx(part.x, part.y, Color.NONE, BODY_SIGN, Color.YELLOW, 75);
                }
            }
            else {
                if (snakeParts.indexOf(part) == 0)
                    game.setCellValueEx(part.x, part.y, Color.NONE, HEAD_SIGN, Color.RED, 75);
                else game.setCellValueEx(part.x, part.y, Color.NONE, BODY_SIGN, Color.RED, 75);
            }
            }
        }