Crash

java.lang.ArithmeticException: / by zero
	at xaero.common.minimap.MinimapGraphics.getBrightestColour(MinimapGraphics.java:96)
	at xaero.common.minimap.Minimap.applyTransparentBlock(Minimap.java:689)
	at xaero.common.minimap.Minimap.findBlock(Minimap.java:728)
	at xaero.common.minimap.Minimap.loadBlockColor(Minimap.java:800)
	at xaero.common.minimap.Minimap.updateTile(Minimap.java:521)
	at xaero.common.minimap.Minimap.updateAChunk(Minimap.java:337)
	at xaero.common.minimap.Minimap.access$200(Minimap.java:62)
	at xaero.common.minimap.Minimap$1.run(Minimap.java:94)
	at java.lang.Thread.run(Unknown Source)