java.lang.NullPointerException: Rendering screen
at net.minecraft.item.ItemStack.toString(ItemStack.java:371)
at codechicken.nei.NEIClientUtils.reportErrorBuffered(NEIClientUtils.java:529)
at codechicken.nei.guihook.GuiContainerManager.safeItemRenderContext(GuiContainerManager.java:355)
at codechicken.nei.guihook.GuiContainerManager.drawItem(GuiContainerManager.java:295)
at codechicken.nei.guihook.GuiContainerManager.drawItem(GuiContainerManager.java:281)
at codechicken.nei.guihook.GuiContainerManager.drawSlotItem(GuiContainerManager.java:744)
at net.minecraft.client.gui.inventory.GuiContainer.func_146977_a(GuiContainer.java:270)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:99)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1400)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1001)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
at net.minecraft.client.main.Main.main(SourceFile:148)
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:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:165)
at net.minecraft.launchwrapper.Launch.main(Launch.java:29)
at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627)
at pro.gravit.utils.launch.LegacyLaunch.launch(Unknown Source)
at pro.gravit.launcher.client.ClientLauncherEntryPoint.launch(Unknown Source)
at pro.gravit.launcher.client.ClientLauncherEntryPoint.realMain(Unknown Source)
at pro.gravit.launcher.client.ClientLauncherEntryPoint.main(Unknown Source)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Stacktrace:
at net.minecraft.item.ItemStack.toString(ItemStack.java:371)
at codechicken.nei.NEIClientUtils.reportErrorBuffered(NEIClientUtils.java:529)
at codechicken.nei.guihook.GuiContainerManager.safeItemRenderContext(GuiContainerManager.java:355)
at codechicken.nei.guihook.GuiContainerManager.drawItem(GuiContainerManager.java:295)
at codechicken.nei.guihook.GuiContainerManager.drawItem(GuiContainerManager.java:281)
at codechicken.nei.guihook.GuiContainerManager.drawSlotItem(GuiContainerManager.java:744)
at net.minecraft.client.gui.inventory.GuiContainer.func_146977_a(GuiContainer.java:270)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:99)

-- Screen render details --
Details:
Screen name: net.minecraft.client.gui.inventory.GuiCrafting
Mouse location: Scaled: (196, 77). Absolute: (784, 700)
Screen size: Scaled: (480, 253). Absolute: (1920, 1009). Scale factor of 4