Failed to execute 'decodeAudioData' on 'AudioContext'

[facetiousfactorial.cs]

I've followed the directions on photonstorm's website the best i could to play audio whenever the world restarts. (This is a mod of a flappy bird project). the console reads:

Phaser.StateManager - No state found with the key: main_state phaser.min.js:4Uncaught SyntaxError: Failed to execute 'decodeAudioData' on 'AudioContext': invalid ArrayBuffer for audioData. phaser.min.js:10

My main.js:

/*jslint node: true */"use strict";var game = new Phaser.Game(400, 490, Phaser.AUTO, 'game_div');var sfx = Phaser.Sound;var main_state = {		preload: function () {        this.game.stage.backgroundColor = '#71c5cf';        this.game.load.image('george', 'assets/george.png');        this.game.load.image('pipe', 'assets/pipe.png');		this.game.load.audio('sfx', 'assets/music.mp3');    },   	    create: function () {				/*AUDIO*/		var sfx = game.add.audio('sfx');				/*SPRITES & MECHANICS*/		this.george = this.game.add.sprite(100, 245, 'george');        this.george.body.gravity.y = 1000;        var space_key = this.game.input.keyboard.addKey(Phaser.Keyboard.SPACEBAR);        space_key.onDown.add(this.jump, this);        this.pipes = game.add.group();        this.pipes.createMultiple(20, 'pipe');        this.timer = this.game.time.events.loop(1500, this.add_row_of_pipes, this);					this.score = -1;        var style = { font: "30px Arial", fill: "#ffffff" };        this.label_score = this.game.add.text(20, 20, "Score = 0", style);				this.game.state.start('main_state');    },        update: function () {		if (this.george.inWorld === false){        	this.restart_game();		}		        this.game.physics.overlap(this.george, this.pipes, this.restart_game, null, this);	},      jump: function () {        this.george.body.velocity.y = -350;    },    restart_game: function () {        this.game.time.events.remove(this.timer);        this.game.state.start('main');		sfx.play();    },    add_one_pipe: function (x, y) {        var pipe = this.pipes.getFirstDead();        pipe.reset(x, y);        pipe.body.velocity.x = -200;        pipe.outOfBoundsKill = true;    },    add_row_of_pipes: function () {        var hole = Math.floor(Math.random() * 5) + 1;                for (var i = 0; i < 8; i++){            if (i != hole && i != hole +1)                this.add_one_pipe(400, i*60+10);		}		        this.score += 1;        this.label_score.content = 'Score = ' + this.score;    },};game.state.add('main', main_state);game.state.start('main');