I was told this might be your mod crashing the client.
Any ideas?

---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 6/18/16 10:45 PM
Description: Rendering item

java.lang.NullPointerException: Rendering item
at net.minecraft.item.ItemStack.func_94608_d(ItemStack.java:123)
at net.minecraftforge.client.ForgeHooksClient.renderInventoryItem(ForgeHooksClient.java:161)
at net.minecraft.client.renderer.entity.RenderItem.func_82406_b(RenderItem.java:563)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_147051_a(GuiContainerCreative.java:929)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_146976_a(GuiContainerCreative.java:760)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:78)
at net.minecraft.client.renderer.InventoryEffectRenderer.func_73863_a(InventoryEffectRenderer.java:38)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_73863_a(GuiContainerCreative.java:638)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1397)
at weather2.weathersystem.EntityRendererProxyWeather2Mini.func_78480_b(EntityRendererProxyWeather2Mini.java:50)
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:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Stacktrace:
at net.minecraft.item.ItemStack.func_94608_d(ItemStack.java:123)
at net.minecraftforge.client.ForgeHooksClient.renderInventoryItem(ForgeHooksClient.java:161)
at net.minecraft.client.renderer.entity.RenderItem.func_82406_b(RenderItem.java:563)

-- Item being rendered --
Details:
Item Type: null
Item Aux: ERROR NullPointerException: null
Item NBT: null
Item Foil: ERROR NullPointerException: null
Stacktrace:
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_147051_a(GuiContainerCreative.java:929)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_146976_a(GuiContainerCreative.java:760)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:78)
at net.minecraft.client.renderer.InventoryEffectRenderer.func_73863_a(InventoryEffectRenderer.java:38)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_73863_a(GuiContainerCreative.java:638)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1397)

-- Screen render details --
Details:
Screen name: net.minecraft.client.gui.inventory.GuiContainerCreative
Mouse location: Scaled: (573, 160). Absolute: (1146, 758)
Screen size: Scaled: (960, 540). Absolute: (1920, 1080). Scale factor of 2
Stacktrace:
at weather2.weathersystem.EntityRendererProxyWeather2Mini.func_78480_b(EntityRendererProxyWeather2Mini.java:50)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['chezboutin'/258451, l='MpServer', x=67.43, y=15.62, z=-926.09]]
Chunk stats: MultiplayerChunkCache: 396, 396
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (119,63,-921), Chunk: (at 7,3,7 in 7,-58; contains blocks 112,0,-928 to 127,255,-913), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513)
Level time: 273802378 game time, 22153075 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false

Not sure if you solved the issue, And are you running a server? If so check that the mods on the server and client match. Aside from the client only mods. I had this exact same issue and it was because I had accidentally removed Aether II from my server but still had it on my client so when I went to that page on the creative tab it crashed because the server didn't load the mod.

Due to the way I instance override EntityRender I get a lot of false positives about crashes, this is one of those times, the actual mod with a bad item isnt clear in that crash either

Having the same problem. I removed weather mod but when I went to page 6 in creative the game crashed. I guess survival and Not Enough Items works.

Can you guys put a list of mods what you have in too?

@VirtualGaming1 Here's what I have. It's kinda long but if there's a mod you know for a fact that won't work with weather, let me know.

• Weather (Removed until bug resolved)
• Archimedes Ships
• Aroma1997 Core
• Backpacks
• Balkon's Weapon Mod
• Battle Towers
• Better Chests
• BiblioCraft
• Blood Magic
• Bookshelf API
• Buildcraft
• Buildcraft Compat
• Chicken Chunks
• Code Chicken Core
• CoFH Core
• ComputerCraft
• coroutil
• Custom Main Menu
• Custom Mob Spawner
• Damage Indicators
• Doomlike Dungeons
• DrZharks Mo' Creatures
• Dynamic Lights
• Enchanting Plus
• EnderCore
• Ender Storage
• Extra Utilities
• Fossil Archeology
• Galacticraft
• Galacticraft Planets
• Hats
• Hat Stand
• iChun Util
• Industrial Craft
• Irish Luck
• LLibrary
• Lucky Block
• Mantle
• Minecraft Comes Alive
• Micdoodle Core
• MineFactory Reloaded
• MrCrafish Furniture Mod
• Mystcraft
• Necromancy
• Not Enough Items
• Not Enough Items Integration
• Nether Ores
• OpenBlocks
• OpenEye
• OpenModsLib
• OpenPeripheral All-In-One
• Optifine HD Ultra D6
• Pam's HarvestCraft
• Radix Core
• Resource Loader
• Ruins
• Secret Rooms Mod
• Shaders (Disabled by default, can be enabled in-game)
• Shatter
• Tinkers' Construct
• Tinkers' Construct Tooltips
• Tinkers' Mechworks
• Thaumcraft
• Thaumcraft Not Enough Items Plugin
• Thaumic Tinkerer
• Thermal Foundation
• Thermal Expansion
• Thermal Dynamics
• Tropicraft
• Twilight Forest
• Update Checker Mod
• Vampirism
• What am I looking at
• What am I looking at Harvestability
• What am I looking at Plugins
• What are we looking at
• Xaero's Minimap

do you know what minecraft version it is?

@VirtualGaming1 1.7.10