It happens way to often that the game crashes when you clear the crafting grid for me, happened 7 times today already, please find a way to fix this, since with a modpack that needs around 5 minutes to start, regular crashes are pretty bad.

crash report file? or log file

it didn't save any crash report, the game just quit, the only thing i have is the log from the point where it crashed.
also if it helps in this particular instance it happened after i crafted something which resulted in me getting an advancement from vanilla minecraft, don't know if this was the case for the other times it happened.

[17:35:11] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.util.NoSuchElementException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_121]
at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:721) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) [MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252) [chd.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.util.NoSuchElementException
at it.unimi.dsi.fastutil.ints.IntArrayList$1.nextInt(IntArrayList.java:545) ~[IntArrayList$1.class:?]
at it.unimi.dsi.fastutil.ints.AbstractIntCollection.addAll(AbstractIntCollection.java:127) ~[AbstractIntCollection.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.func_194097_a(RecipeItemHelper.java:212) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.(RecipeItemHelper.java:121) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194118_a(RecipeItemHelper.java:79) ~[aef.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194116_a(RecipeItemHelper.java:74) ~[aef.class:?]
at net.minecraft.item.crafting.ShapelessRecipes.func_77569_a(ShapelessRecipes.java:88) ~[akx.class:?]
at net.minecraft.item.crafting.CraftingManager.func_192413_b(CraftingManager.java:213) ~[aku.class:?]
at mrriegel.playerstorage.gui.ContainerExI.func_75130_a(ContainerExI.java:223) ~[ContainerExI.class:?]
at net.minecraft.inventory.InventoryCrafting.func_70299_a(SourceFile:93) ~[afy.class:?]
at mrriegel.playerstorage.Message2Server.handleMessage(Message2Server.java:57) ~[Message2Server.class:?]
at mrriegel.limelib.network.AbstractMessage.lambda$onMessage$0(AbstractMessage.java:42) ~[AbstractMessage.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_121]
at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]
... 5 more
[17:35:13] [Server thread/INFO]: SevenChords has made the advancement [Spooky Scary Skeleton]
[17:35:13] [main/INFO]: [CHAT] SevenChords has made the advancement [Spooky Scary Skeleton]
[17:35:13] [main/INFO]: Loaded 717 advancements
[17:35:42] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.util.NoSuchElementException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_121]
at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:721) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) [MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252) [chd.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.util.NoSuchElementException
at it.unimi.dsi.fastutil.ints.IntArrayList$1.nextInt(IntArrayList.java:545) ~[IntArrayList$1.class:?]
at it.unimi.dsi.fastutil.ints.AbstractIntCollection.addAll(AbstractIntCollection.java:127) ~[AbstractIntCollection.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.func_194097_a(RecipeItemHelper.java:212) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.(RecipeItemHelper.java:121) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194118_a(RecipeItemHelper.java:79) ~[aef.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194116_a(RecipeItemHelper.java:74) ~[aef.class:?]
at net.minecraft.item.crafting.ShapelessRecipes.func_77569_a(ShapelessRecipes.java:88) ~[akx.class:?]
at net.minecraft.item.crafting.CraftingManager.func_192413_b(CraftingManager.java:213) ~[aku.class:?]
at mrriegel.playerstorage.gui.ContainerExI.func_75130_a(ContainerExI.java:223) ~[ContainerExI.class:?]
at net.minecraft.inventory.InventoryCrafting.func_70299_a(SourceFile:93) ~[afy.class:?]
at mrriegel.playerstorage.Message2Server.handleMessage(Message2Server.java:57) ~[Message2Server.class:?]
at mrriegel.limelib.network.AbstractMessage.lambda$onMessage$0(AbstractMessage.java:42) ~[AbstractMessage.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_121]
at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]
... 5 more
[17:35:59] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.util.NoSuchElementException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_121]
at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:721) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) [MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252) [chd.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.util.NoSuchElementException
at it.unimi.dsi.fastutil.ints.IntArrayList$1.nextInt(IntArrayList.java:545) ~[IntArrayList$1.class:?]
at it.unimi.dsi.fastutil.ints.AbstractIntCollection.addAll(AbstractIntCollection.java:127) ~[AbstractIntCollection.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.func_194097_a(RecipeItemHelper.java:212) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.(RecipeItemHelper.java:121) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194118_a(RecipeItemHelper.java:79) ~[aef.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194116_a(RecipeItemHelper.java:74) ~[aef.class:?]
at net.minecraft.item.crafting.ShapelessRecipes.func_77569_a(ShapelessRecipes.java:88) ~[akx.class:?]
at net.minecraft.item.crafting.CraftingManager.func_192413_b(CraftingManager.java:213) ~[aku.class:?]
at mrriegel.playerstorage.gui.ContainerExI.func_75130_a(ContainerExI.java:223) ~[ContainerExI.class:?]
at net.minecraft.inventory.InventoryCrafting.func_70299_a(SourceFile:93) ~[afy.class:?]
at net.minecraft.inventory.Slot.func_75215_d(Slot.java:70) ~[agr.class:?]
at net.minecraft.inventory.Container.func_184996_a(Container.java:300) ~[afr.class:?]
at mrriegel.playerstorage.gui.ContainerExI.func_184996_a(ContainerExI.java:194) ~[ContainerExI.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147351_a(NetHandlerPlayServer.java:1158) ~[pa.class:?]
at net.minecraft.network.play.client.CPacketClickWindow.func_148833_a(CPacketClickWindow.java:38) ~[lf.class:?]
at net.minecraft.network.play.client.CPacketClickWindow.func_148833_a(CPacketClickWindow.java:12) ~[lf.class:?]
at net.minecraft.network.PacketThreadUtil$1.run(PacketThreadUtil.java:20) ~[hv$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_121]
at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]
... 5 more
[17:37:11] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3351ms behind, skipping 67 tick(s)
[17:37:14] [Server thread/INFO]: Stopping server
[17:37:14] [Server thread/INFO]: Saving players
[17:37:14] [Server thread/INFO]: Saving worlds
[17:37:14] [Server thread/INFO]: Saving chunks for level 'survplaza1'/overworld
[17:37:14] [Server thread/INFO]: Saving chunks for level 'survplaza1'/the_nether
[17:37:14] [Server thread/INFO]: Saving chunks for level 'survplaza1'/the_end
[17:37:14] [Server thread/INFO]: Saving chunks for level 'survplaza1'/Deep Dark
[17:37:14] [Server thread/INFO]: Saving chunks for level 'survplaza1'/ExtraUtils2_Quarry_Dim
[17:37:23] [main/FATAL]: Reported exception thrown!
net.minecraft.util.ReportedException: Updating screen events
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1770) ~[bib.class:?]
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1096) ~[bib.class:?]
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397) [bib.class:?]
at net.minecraft.client.main.Main.main(SourceFile:123) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196) [NewLaunch.jar:?]
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231) [NewLaunch.jar:?]
at org.multimc.EntryPoint.listen(EntryPoint.java:143) [NewLaunch.jar:?]
at org.multimc.EntryPoint.main(EntryPoint.java:34) [NewLaunch.jar:?]
Caused by: java.util.NoSuchElementException
at it.unimi.dsi.fastutil.ints.IntArrayList$1.nextInt(IntArrayList.java:545) ~[IntArrayList$1.class:?]
at it.unimi.dsi.fastutil.ints.AbstractIntCollection.addAll(AbstractIntCollection.java:127) ~[AbstractIntCollection.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.func_194097_a(RecipeItemHelper.java:212) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper$RecipePicker.(RecipeItemHelper.java:121) ~[aef$a.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194118_a(RecipeItemHelper.java:79) ~[aef.class:?]
at net.minecraft.client.util.RecipeItemHelper.func_194116_a(RecipeItemHelper.java:74) ~[aef.class:?]
at net.minecraft.item.crafting.ShapelessRecipes.func_77569_a(ShapelessRecipes.java:88) ~[akx.class:?]
at net.minecraft.item.crafting.CraftingManager.func_192413_b(CraftingManager.java:213) ~[aku.class:?]
at mrriegel.playerstorage.gui.ContainerExI.func_75130_a(ContainerExI.java:223) ~[ContainerExI.class:?]
at net.minecraft.inventory.InventoryCrafting.func_70299_a(SourceFile:93) ~[afy.class:?]
at mrriegel.playerstorage.Message2Server.handleMessage(Message2Server.java:58) ~[Message2Server.class:?]
at mrriegel.playerstorage.gui.GuiExI.func_146284_a(GuiExI.java:307) ~[GuiExI.class:?]
at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:443) ~[blk.class:?]
at net.minecraft.client.gui.inventory.GuiContainer.func_73864_a(GuiContainer.java:323) ~[bmg.class:?]
at mrriegel.limelib.gui.CommonGuiContainer.func_73864_a(CommonGuiContainer.java:66) ~[CommonGuiContainer.class:?]
at mrriegel.playerstorage.gui.GuiExI.func_73864_a(GuiExI.java:332) ~[GuiExI.class:?]
at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:533) ~[blk.class:?]
at mrriegel.limelib.gui.CommonGuiContainer.func_146274_d(CommonGuiContainer.java:85) ~[CommonGuiContainer.class:?]
at mrriegel.playerstorage.gui.GuiExI.func_146274_d(GuiExI.java:367) ~[GuiExI.class:?]
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:501) ~[blk.class:?]
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1757) ~[bib.class:?]
... 17 more

does the log help in any way?

probably

sorry, I have no idea why this crash happens.
does it only happen when you clear the grid? did you have the same problems with other crafting tables (vanilla, AE2, refined storage)?
maybe it's caused by another mod. try only with player storage (and limelib) installed

Yes, only happens when clearing the grid, tested with vanilla crafting table, didn't happen, ae and refined storage not installed, the only thing it may be an incompability is the detect function from better questing somehow, but no other mod was involved in the items/events handeled while crafting/clearing the grid

java version is 8 update 151

show me your modlist. and forge version

is that a public modpack? if so, which one?

it's the "Peace of mind" pack up on curseforge, your mod was a manual addition

ok, I'm gonna test it with that pack

WAIT!! why the heck do you use version 1.1.1 ??
use a recent version!

oh, that might be it...
i just copied the file from another modpack where it was working fine, will test the bug with the most recent version and give you feedback wheather it is still present

ok, that was it, sorry to waste your time, but with the 1.2.5 version of the mod everything was fine