A detailed walkthrough of the error, its code path and all known details is as follows:
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-- Head --
Thread: Client thread
Stacktrace:
	at net.minecraftforge.fml.common.registry.GameRegistry.getFuelValue(GameRegistry.java:287)
	at net.minecraft.tileentity.TileEntityFurnace.getItemBurnTime(TileEntityFurnace.java:374)
	at net.minecraft.tileentity.TileEntityFurnace.isItemFuel(TileEntityFurnace.java:384)
	at net.minecraft.inventory.SlotFurnaceFuel.isItemValid(SlotFurnaceFuel.java:20)
	at net.minecraft.client.gui.inventory.GuiContainer.mouseClickMove(GuiContainer.java:503)
	at net.minecraft.client.gui.GuiScreen.handleMouseInput(GuiScreen.java:624)
	at net.minecraft.client.gui.GuiScreen.handleInput(GuiScreen.java:575)

-- Affected screen --
Details:
	Screen name: net.minecraft.client.gui.inventory.GuiFurnace

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [EntityPlayerSP['Player328'/218, l='MpServer', x=-276.81, y=84.00, z=895.36]]
	Chunk stats: MultiplayerChunkCache: 114, 114
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options:
	Level spawn location: World: (42,64,288), Chunk: (at 10,4,0 in 2,18; contains blocks 32,0,288 to 47,255,303), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 130439 game time, 73147 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 50 total; [EntityChicken['Chicken'/258, l='MpServer', x=-227.26, y=79.00, z=847.36], EntityBat['Bat'/259, l='MpServer', x=-234.25, y=47.00, z=842.61], EntityChicken['Chicken'/260, l='MpServer', x=-247.16, y=78.00, z=862.42], EntityItem['item.item.egg'/261, l='MpServer', x=-243.13, y=77.00, z=853.75], EntityItem['item.item.egg'/262, l='MpServer', x=-240.48, y=78.00, z=859.00], EntityItem['item.item.egg'/263, l='MpServer', x=-248.46, y=77.00, z=858.04], EntityChicken['Chicken'/264, l='MpServer', x=-253.70, y=76.00, z=849.19], EntityItem['item.item.egg'/265, l='MpServer', x=-253.89, y=76.00, z=848.94], EntityChicken['Chicken'/266, l='MpServer', x=-248.52, y=77.00, z=855.14], EntityChicken['Chicken'/270, l='MpServer', x=-218.33, y=78.00, z=878.18], EntityItem['item.item.egg'/272, l='MpServer', x=-218.42, y=78.00, z=877.55], EntityItem['item.item.egg'/273, l='MpServer', x=-220.34, y=78.00, z=873.08], EntityChicken['Chicken'/274, l='MpServer', x=-278.53, y=66.00, z=931.61], EntityBat['Bat'/282, l='MpServer', x=-321.09, y=19.49, z=854.51], EntityChicken['Chicken'/286, l='MpServer', x=-237.61, y=78.00, z=873.85], EntityChicken['Chicken'/287, l='MpServer', x=-228.13, y=77.00, z=877.50], EntityItem['item.item.egg'/288, l='MpServer', x=-254.37, y=83.00, z=893.06], EntityChicken['Chicken'/289, l='MpServer', x=-245.85, y=80.00, z=891.44], EntityItem['item.item.arrow'/297, l='MpServer', x=-329.94, y=79.00, z=832.56], EntityChicken['Chicken'/308, l='MpServer', x=-215.50, y=76.00, z=906.22], EntityBat['Bat'/312, l='MpServer', x=-286.25, y=51.10, z=843.75], EntityChicken['Chicken'/313, l='MpServer', x=-333.28, y=63.00, z=889.20], EntityChicken['Chicken'/314, l='MpServer', x=-323.59, y=66.00, z=890.50], EntityChicken['Chicken'/318, l='MpServer', x=-215.59, y=76.66, z=889.25], EntityChicken['Chicken'/319, l='MpServer', x=-216.50, y=78.00, z=875.84], EntityChicken['Chicken'/321, l='MpServer', x=-259.26, y=74.00, z=936.43], EntityItem['item.item.egg'/322, l='MpServer', x=-257.09, y=75.00, z=935.86], EntityChicken['Chicken'/323, l='MpServer', x=-336.50, y=63.00, z=888.50], EntitySquid['Squid'/324, l='MpServer', x=-310.40, y=59.00, z=909.20], EntitySquid['Squid'/325, l='MpServer', x=-315.50, y=58.13, z=913.02], EntitySquid['Squid'/331, l='MpServer', x=-324.31, y=62.00, z=905.93], EntityChicken['Chicken'/332, l='MpServer', x=-332.36, y=73.00, z=902.46], EntityChicken['Chicken'/337, l='MpServer', x=-260.45, y=77.00, z=844.88], EntityBat['Bat'/338, l='MpServer', x=-280.25, y=16.00, z=862.75], EntityChicken['Chicken'/339, l='MpServer', x=-296.11, y=76.00, z=866.67], EntityPlayerSP['Player328'/218, l='MpServer', x=-276.81, y=84.00, z=895.36], EntityItem['item.item.egg'/220, l='MpServer', x=-248.40, y=78.00, z=865.83], EntityItem['item.item.egg'/221, l='MpServer', x=-265.88, y=74.00, z=881.95], EntityChicken['Chicken'/222, l='MpServer', x=-280.49, y=74.00, z=905.87], EntityItem['item.item.bone'/237, l='MpServer', x=-330.02, y=79.00, z=831.81], EntityItem['item.item.egg'/239, l='MpServer', x=-221.84, y=77.00, z=847.57], EntityChicken['Chicken'/240, l='MpServer', x=-221.49, y=78.00, z=846.18], EntityChicken['Chicken'/241, l='MpServer', x=-222.87, y=77.00, z=865.42], EntityChicken['Chicken'/242, l='MpServer', x=-239.82, y=78.00, z=858.85], EntityItem['item.item.egg'/243, l='MpServer', x=-233.97, y=77.00, z=862.24], EntityChicken['Chicken'/244, l='MpServer', x=-239.16, y=78.00, z=863.50], EntityChicken['Chicken'/245, l='MpServer', x=-227.21, y=79.00, z=848.50], EntityChicken['Chicken'/246, l='MpServer', x=-268.48, y=73.63, z=877.20], EntityChicken['Chicken'/247, l='MpServer', x=-257.50, y=77.00, z=877.43], EntitySquid['Squid'/248, l='MpServer', x=-314.42, y=59.00, z=908.74]]
	Retry entities: 0 total; []
	Server brand: fml,forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:448)
	at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2770)
	at net.minecraft.client.Minecraft.run(Minecraft.java:425)
	at net.minecraft.client.main.Main.main(Main.java:118)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
	at GradleStart.main(GradleStart.java:26)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)