i have a forge server with a couple of mods and there has been no problem until yesterday when i was unable to connect and my minecraft crashed. i dont know why it crashed and i am getting frustrated. if anyone could help me or link me to somewhere that could help me here are the mods:
Aether II 1.5.1
SimpleOres 2 1.6.0
SimpleCore API 1.1.0
CSGO Knife Mod 1.0.0
Glided-Games-Util

here is the crash report:
---- Minecraft Crash Report ----
// But it works on my machine.

Time: 9/26/15 1:17 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at net.aetherteam.aether.client.renders.entities.player.RenderPlayerAether.renderGloves(RenderPlayerAether.java:74)
at net.aetherteam.aether.client.renders.entities.player.RenderPlayerAether.renderHand(RenderPlayerAether.java:509)
at net.aetherteam.aether.client.ClientGuiListener.onRenderHand(ClientGuiListener.java:67)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_49_ClientGuiListener_onRenderHand_RenderHandEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)
at net.minecraftforge.client.ForgeHooksClient.renderFirstPersonHand(ForgeHooksClient.java:266)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1358)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1011)
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:483)
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.aetherteam.aether.client.renders.entities.player.RenderPlayerAether.renderGloves(RenderPlayerAether.java:74)
at net.aetherteam.aether.client.renders.entities.player.RenderPlayerAether.renderHand(RenderPlayerAether.java:509)
at net.aetherteam.aether.client.ClientGuiListener.onRenderHand(ClientGuiListener.java:67)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_49_ClientGuiListener_onRenderHand_RenderHandEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)
at net.minecraftforge.client.ForgeHooksClient.renderFirstPersonHand(ForgeHooksClient.java:266)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1358)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['Trucified'/326, l='MpServer', x=202.37, y=64.62, z=783.23]]
Chunk stats: MultiplayerChunkCache: 285, 285
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (201,63,767), Chunk: (at 9,3,15 in 12,47; contains blocks 192,0,752 to 207,255,767), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
Level time: 688378 game time, 29345 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 103 total; [EntityClientPlayerMP['Trucified'/326, l='MpServer', x=202.37, y=64.62, z=783.23], EntityPainting['Painting'/121, l='MpServer', x=206.94, y=62.00, z=798.50], EntityPainting['Painting'/122, l='MpServer', x=205.00, y=62.50, z=797.06], EntityPainting['Painting'/123, l='MpServer', x=197.06, y=61.50, z=798.00], EntityPainting['Painting'/124, l='MpServer', x=197.06, y=62.50, z=798.00], EntityPainting['Painting'/132, l='MpServer', x=206.94, y=62.00, z=800.00], EntityPainting['Painting'/133, l='MpServer', x=206.94, y=62.00, z=801.50], EntityPainting['Painting'/134, l='MpServer', x=206.94, y=62.00, z=803.00], EntityPainting['Painting'/135, l='MpServer', x=205.00, y=61.50, z=804.94], EntityPainting['Painting'/136, l='MpServer', x=197.06, y=62.00, z=803.00], EntitySheep['Sheep'/66, l='MpServer', x=142.25, y=63.00, z=787.06], EntityLeashKnot['entity.LeashKnot.name'/325, l='MpServer', x=194.50, y=63.50, z=782.50], EntitySkeleton['Skeleton'/70, l='MpServer', x=151.50, y=32.00, z=724.50], EntitySquid['Squid'/71, l='MpServer', x=154.50, y=50.22, z=730.44], EntitySquid['Squid'/72, l='MpServer', x=154.34, y=57.31, z=725.66], EntitySheep['Sheep'/73, l='MpServer', x=152.50, y=70.00, z=798.72], EntitySheep['Sheep'/74, l='MpServer', x=158.09, y=69.00, z=838.13], EntityCreeper['Creeper'/75, l='MpServer', x=145.69, y=57.00, z=860.31], EntityCreeper['Creeper'/76, l='MpServer', x=149.69, y=56.00, z=860.50], EntitySheep['Sheep'/86, l='MpServer', x=173.47, y=73.00, z=750.66], EntityCreeper['Creeper'/87, l='MpServer', x=166.50, y=72.00, z=793.50], EntityZombie['Zombie'/93, l='MpServer', x=186.50, y=20.00, z=704.50], EntityCreeper['Creeper'/94, l='MpServer', x=185.50, y=18.00, z=708.50], EntitySkeleton['Skeleton'/95, l='MpServer', x=184.50, y=28.00, z=720.16], EntitySheep['Sheep'/112, l='MpServer', x=199.50, y=64.00, z=720.66], EntityChicken['Chicken'/113, l='MpServer', x=203.78, y=63.00, z=781.53], EntityHorse['Horse'/114, l='MpServer', x=197.19, y=63.00, z=782.53], EntityChicken['Chicken'/115, l='MpServer', x=203.78, y=63.00, z=782.47], EntityChicken['Chicken'/116, l='MpServer', x=206.47, y=63.00, z=782.47], EntityChicken['Chicken'/117, l='MpServer', x=206.53, y=63.00, z=780.78], EntityChicken['Chicken'/118, l='MpServer', x=204.47, y=63.00, z=780.78], EntityChicken['Chicken'/119, l='MpServer', x=203.78, y=63.00, z=780.78], EntityBat['Bat'/120, l='MpServer', x=207.94, y=29.10, z=794.53], EntityPainting['Painting'/121, l='MpServer', x=206.94, y=62.00, z=798.50], EntityPainting['Painting'/122, l='MpServer', x=205.00, y=62.50, z=797.06], EntityPainting['Painting'/123, l='MpServer', x=197.06, y=61.50, z=798.00], EntityPainting['Painting'/124, l='MpServer', x=197.06, y=62.50, z=798.00], EntityItemFrame['entity.ItemFrame.name'/125, l='MpServer', x=197.06, y=62.50, z=799.50], EntityPig['Pig'/126, l='MpServer', x=205.34, y=63.00, z=787.91], EntityPig['Pig'/127, l='MpServer', x=206.50, y=63.00, z=787.34], EntityPig['Pig'/128, l='MpServer', x=205.38, y=63.00, z=786.09], EntityPig['Pig'/129, l='MpServer', x=206.91, y=63.00, z=786.09], EntityPig['Pig'/130, l='MpServer', x=204.09, y=63.00, z=786.09], EntityPig['Pig'/131, l='MpServer', x=204.09, y=63.00, z=787.25], EntityPainting['Painting'/132, l='MpServer', x=206.94, y=62.00, z=800.00], EntityPainting['Painting'/133, l='MpServer', x=206.94, y=62.00, z=801.50], EntityPainting['Painting'/134, l='MpServer', x=206.94, y=62.00, z=803.00], EntityPainting['Painting'/135, l='MpServer', x=205.00, y=61.50, z=804.94], EntityPainting['Painting'/136, l='MpServer', x=197.06, y=62.00, z=803.00], EntityItemFrame['entity.ItemFrame.name'/137, l='MpServer', x=197.06, y=62.50, z=801.50], EntityZombie['Zombie'/138, l='MpServer', x=190.97, y=58.00, z=829.53], EntityBat['Bat'/139, l='MpServer', x=205.65, y=23.21, z=839.41], EntityZombie['Zombie'/140, l='MpServer', x=197.75, y=49.35, z=858.25], EntitySheep['Sheep'/153, l='MpServer', x=219.81, y=60.00, z=711.72], EntitySheep['Sheep'/154, l='MpServer', x=209.53, y=76.00, z=729.38], EntitySkeleton['Skeleton'/155, l='MpServer', x=212.94, y=66.00, z=741.47], EntitySheep['Sheep'/156, l='MpServer', x=219.91, y=71.00, z=738.63], EntityCow['Cow'/157, l='MpServer', x=208.09, y=63.00, z=782.25], EntityCow['Cow'/158, l='MpServer', x=209.22, y=63.00, z=782.91], EntityCow['Cow'/159, l='MpServer', x=210.44, y=63.00, z=781.66], EntityCow['Cow'/160, l='MpServer', x=209.22, y=63.00, z=781.09], EntityCow['Cow'/161, l='MpServer', x=210.91, y=63.00, z=782.91], EntityCow['Cow'/162, l='MpServer', x=208.09, y=63.00, z=781.09], EntitySheep['Sheep'/163, l='MpServer', x=209.47, y=63.00, z=787.63], EntitySheep['Sheep'/164, l='MpServer', x=210.91, y=63.00, z=786.09], EntitySheep['Sheep'/165, l='MpServer', x=210.74, y=63.00, z=787.69], EntitySheep['Sheep'/166, l='MpServer', x=208.09, y=63.00, z=787.49], EntitySheep['Sheep'/167, l='MpServer', x=209.34, y=63.00, z=786.09], EntitySheep['Sheep'/168, l='MpServer', x=208.09, y=63.00, z=786.09], EntitySkeleton['Skeleton'/169, l='MpServer', x=209.16, y=28.00, z=793.50], EntitySkeleton['Skeleton'/170, l='MpServer', x=218.09, y=44.00, z=830.50], EntityZombie['Zombie'/171, l='MpServer', x=212.84, y=50.00, z=819.72], EntityZombie['Zombie'/172, l='MpServer', x=216.50, y=50.00, z=824.03], EntityZombie['Zombie'/173, l='MpServer', x=221.44, y=43.00, z=841.13], EntityCreeper['Creeper'/174, l='MpServer', x=215.13, y=32.00, z=840.22], EntityCreeper['Creeper'/175, l='MpServer', x=224.13, y=43.00, z=841.16], EntityBat['Bat'/176, l='MpServer', x=213.26, y=32.82, z=834.83], EntityItem['item.item.rottenFlesh'/177, l='MpServer', x=210.81, y=67.13, z=839.63], EntitySkeleton['Skeleton'/186, l='MpServer', x=239.66, y=28.00, z=729.91], EntitySheep['Sheep'/187, l='MpServer', x=236.50, y=63.00, z=727.09], EntitySheep['Sheep'/188, l='MpServer', x=229.66, y=68.00, z=722.31], EntitySheep['Sheep'/189, l='MpServer', x=236.50, y=64.00, z=728.53], EntitySheep['Sheep'/190, l='MpServer', x=234.28, y=81.00, z=733.41], EntityBat['Bat'/191, l='MpServer', x=238.91, y=27.10, z=740.47], EntityBat['Bat'/192, l='MpServer', x=241.31, y=29.10, z=734.02], EntitySheep['Sheep'/193, l='MpServer', x=238.66, y=71.00, z=750.50], EntitySheep['Sheep'/194, l='MpServer', x=232.34, y=71.00, z=754.47], EntitySkeleton['Skeleton'/195, l='MpServer', x=233.88, y=53.00, z=827.50], EntityZombie['Zombie'/196, l='MpServer', x=232.50, y=28.00, z=840.50], EntityZombie['Zombie'/197, l='MpServer', x=228.50, y=28.00, z=838.50], EntitySkeleton['Skeleton'/198, l='MpServer', x=231.50, y=51.00, z=846.09], EntityZombie['Zombie'/199, l='MpServer', x=233.50, y=50.00, z=842.50], EntityBat['Bat'/200, l='MpServer', x=233.31, y=27.60, z=856.62], EntityZombie['Zombie'/215, l='MpServer', x=240.56, y=24.00, z=741.00], EntitySkeleton['Skeleton'/216, l='MpServer', x=239.53, y=27.00, z=737.09], EntityCreeper['Creeper'/217, l='MpServer', x=253.50, y=65.00, z=768.50], EntityZombie['Zombie'/218, l='MpServer', x=253.03, y=17.00, z=811.50], EntityBat['Bat'/219, l='MpServer', x=246.56, y=17.10, z=827.06], EntityCreeper['Creeper'/223, l='MpServer', x=262.50, y=47.00, z=714.50], EntityBat['Bat'/224, l='MpServer', x=262.50, y=28.10, z=742.75], EntityCreeper['Creeper'/225, l='MpServer', x=256.78, y=19.00, z=790.91], EntityZombie['Zombie'/232, l='MpServer', x=273.50, y=41.00, z=723.13], EntityBat['Bat'/234, l='MpServer', x=278.16, y=29.10, z=741.50]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Non-integrated multiplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2444)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:927)
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:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)