Exception in thread "Thread-0" java.lang.IllegalStateException: Component must have a valid peer
	at java.awt.Component$FlipBufferStrategy.createBuffers(Component.java:4008)
	at java.awt.Component$FlipBufferStrategy.<init>(Component.java:3982)
	at java.awt.Component$FlipSubRegionBufferStrategy.<init>(Component.java:4505)
	at java.awt.Component.createBufferStrategy(Component.java:3859)
	at java.awt.Canvas.createBufferStrategy(Canvas.java:194)
	at java.awt.Component.createBufferStrategy(Component.java:3783)
	at java.awt.Canvas.createBufferStrategy(Canvas.java:169)
	at singleplayer.Game.render(Game.java:119)
	at singleplayer.Game.run(Game.java:65)
	at java.lang.Thread.run(Thread.java:745)