Hello,

"Translated into English with google.com".

i've been getting the same error messages for a few days. When I try to log out of my server because I'm ready for the day, the game completely crashes. I am not a programmer or a PC specialist. Help would be really nice.

I can't answer right away because I don't always find the time, I ask for your understanding.
Thanks for the help.

See You.

ModPack: Sky Stream Madness v2.12.13
Forge: 36.1.16

Error:

java.lang.NullPointerException: Registry Object not present: mob_grinding_utils:fluid_xp
at java.util.Objects.requireNonNull(Unknown Source)
at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:120)
at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:39)
at net.minecraftforge.fluids.ForgeFlowingFluid.func_204527_a(ForgeFlowingFluid.java:138)
at net.minecraft.fluid.FluidState.func_206883_i(FluidState.java:91)
at mod.chiselsandbits.chiseledblock.BlockBitInfo.addFluidBlock(BlockBitInfo.java:112)
at mod.chiselsandbits.chiseledblock.BlockBitInfo.recalculateFluids(BlockBitInfo.java:105)
at mod.chiselsandbits.chiseledblock.BlockBitInfo.recalculate(BlockBitInfo.java:95)
at mod.chiselsandbits.core.ChiselsAndBits.handleIdMapping(ChiselsAndBits.java:131)
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247)
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239)
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302)
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283)
at net.minecraftforge.registries.GameData.fireRemapEvent(GameData.java:890)
at net.minecraftforge.registries.GameData.revertTo(GameData.java:335)
at net.minecraftforge.registries.GameData.revertToFrozen(GameData.java:314)
at net.minecraftforge.fml.client.ClientHooks.handleClientWorldClosing(ClientHooks.java:204)
at net.minecraft.client.Minecraft.func_213231_b(Minecraft.java:1926)
at net.minecraft.client.Minecraft.func_213254_o(Minecraft.java:1893)
at net.minecraft.client.gui.screen.IngameMenuScreen.md4ba8e6$lambda$adjustOnPress$0$0(SourceFile:572)
at net.minecraft.client.gui.widget.button.Button.func_230930_b_(SourceFile:33)
at net.minecraft.client.gui.widget.button.AbstractButton.func_230982_a_(SourceFile:16)
at net.minecraft.client.gui.widget.Widget.func_231044_a_(Widget.java:136)
at net.minecraft.client.gui.INestedGuiEventHandler.func_231044_a_(SourceFile:27)
at net.minecraft.client.MouseHelper.func_198033_b(MouseHelper.java:87)
at net.minecraft.client.gui.screen.Screen.func_231153_a_(Screen.java:427)
at net.minecraft.client.MouseHelper.func_198023_a(MouseHelper.java:85)
at net.minecraft.client.MouseHelper.func_228030_c_(MouseHelper.java:175)
at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:111)
at net.minecraft.client.MouseHelper.func_228028_b_(MouseHelper.java:174)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:102)
at net.minecraft.client.MainWindow.func_227802_e_(MainWindow.java:398)
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:996)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607)
at net.minecraft.client.main.Main.main(Main.java:184)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51)
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82)
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:210)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:245)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)

java.lang.NullPointerException: Registry Object not present: mob_grinding_utils:fluid_xp
at java.util.Objects.requireNonNull(Unknown Source)
at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:120)
at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:39)
at net.minecraftforge.fluids.ForgeFlowingFluid.func_204527_a(ForgeFlowingFluid.java:138)
at net.minecraft.fluid.FluidState.func_206883_i(FluidState.java:91)
at mod.chiselsandbits.chiseledblock.BlockBitInfo.addFluidBlock(BlockBitInfo.java:112)
at mod.chiselsandbits.chiseledblock.BlockBitInfo.recalculateFluids(BlockBitInfo.java:105)
at mod.chiselsandbits.chiseledblock.BlockBitInfo.recalculate(BlockBitInfo.java:95)
at mod.chiselsandbits.core.ChiselsAndBits.handleIdMapping(ChiselsAndBits.java:131)
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247)
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239)
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302)
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283)
at net.minecraftforge.registries.GameData.fireRemapEvent(GameData.java:890)
at net.minecraftforge.registries.GameData.revertTo(GameData.java:335)
at net.minecraftforge.registries.GameData.revertToFrozen(GameData.java:314)
at net.minecraftforge.fml.client.ClientHooks.handleClientWorldClosing(ClientHooks.java:204)
at net.minecraft.client.Minecraft.func_213231_b(Minecraft.java:1926)
at net.minecraft.client.Minecraft.func_71398_f(Minecraft.java:1105)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:624)
at net.minecraft.client.main.Main.main(Main.java:184)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51)
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82)
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:210)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:245)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)

java.lang.NullPointerException: Registry Object not present: mob_grinding_utils:fluid_xp
at java.util.Objects.requireNonNull(Unknown Source) ~[?:1.8.0_301] {}
at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:120) ~[forge:?] {re:mixin,re:classloading}
at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:39) ~[forge:?] {re:mixin,re:classloading}
at net.minecraftforge.fluids.ForgeFlowingFluid.func_204527_a(ForgeFlowingFluid.java:138) ~[forge:?] {re:classloading}
at net.minecraft.fluid.FluidState.func_206883_i(FluidState.java:91) ~[?:?] {re:mixin,re:classloading,xf:fml:forgeendertech:randomTickFluid,pl:mixin:APP:libx.mixins.json:MixinFluidState,pl:mixin:A}
at mod.chiselsandbits.chiseledblock.BlockBitInfo.addFluidBlock(BlockBitInfo.java:112) ~[chiselsandbits:?] {re:classloading}
at mod.chiselsandbits.chiseledblock.BlockBitInfo.recalculateFluids(BlockBitInfo.java:105) ~[chiselsandbits:?] {re:classloading}
at mod.chiselsandbits.chiseledblock.BlockBitInfo.recalculate(BlockBitInfo.java:95) ~[chiselsandbits:?] {re:classloading}
at mod.chiselsandbits.core.ChiselsAndBits.handleIdMapping(ChiselsAndBits.java:131) ~[chiselsandbits:?] {re:classloading}
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.registries.GameData.fireRemapEvent(GameData.java:890) ~[forge:?] {re:classloading}
at net.minecraftforge.registries.GameData.revertTo(GameData.java:335) ~[forge:?] {re:classloading}
at net.minecraftforge.registries.GameData.revertToFrozen(GameData.java:314) ~[forge:?] {re:classloading}
at net.minecraftforge.fml.client.ClientHooks.handleClientWorldClosing(ClientHooks.java:204) ~[forge:?] {re:classloading}
at net.minecraft.client.Minecraft.func_213231_b(Minecraft.java:1926) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:randompatches.mixins.json:client.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_213254_o(Minecraft.java:1893) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:randompatches.mixins.json:client.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screen.IngameMenuScreen.md4ba8e6$lambda$adjustOnPress$0$0(SourceFile:572) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:randompatches.mixins.json:client.IngameMenuScreenMixin,pl:mixin:A}
at net.minecraft.client.gui.widget.button.Button.func_230930_b_(SourceFile:33) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B}
at net.minecraft.client.gui.widget.button.AbstractButton.func_230982_a_(SourceFile:16) ~[?:?] {re:mixin,re:classloading}
at net.minecraft.client.gui.widget.Widget.func_231044_a_(Widget.java:136) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:fancymenu.general.mixin.json:MixinWidget,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.INestedGuiEventHandler.func_231044_a_(SourceFile:27) ~[?:?] {re:computing_frames,re:mixin,re:classloading}
at net.minecraft.client.MouseHelper.func_198033_b(MouseHelper.java:87) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:randompatches.mixins.json:client.keybindings.MouseHelperMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screen.Screen.func_231153_a_(Screen.java:427) ~[?:?] {re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:fancymenu.general.mixin.json:MixinScreen,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.MouseHelper.func_198023_a(MouseHelper.java:85) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:randompatches.mixins.json:client.keybindings.MouseHelperMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.MouseHelper.func_228030_c_(MouseHelper.java:175) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:randompatches.mixins.json:client.keybindings.MouseHelperMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:111) ~[?:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,xf:OptiFine:default,re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
at net.minecraft.client.MouseHelper.func_228028_b_(MouseHelper.java:174) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:randompatches.mixins.json:client.keybindings.MouseHelperMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:102) ~[?:?] {re:classloading,re:mixin}
at net.minecraft.client.MainWindow.func_227802_e_(MainWindow.java:398) ~[?:?] {re:mixin,re:classloading,xf:OptiFine:default}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:996) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:randompatches.mixins.json:client.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:randompatches.mixins.json:client.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) ~[minecraft-1.16.5-client.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_301] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_301] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.5-36.1.16-launcher.jar:36.1] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {re:classloading}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {re:classloading}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_301] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_301] {}
at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:52) [ForgeWrapper-1.5.1.jar:1.5.1] {}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_301] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_301] {}
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:210) [NewLaunch.jar:?] {}
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:245) [NewLaunch.jar:?] {}
at org.multimc.EntryPoint.listen(EntryPoint.java:143) [NewLaunch.jar:?] {}
at org.multimc.EntryPoint.main(EntryPoint.java:34) [NewLaunch.jar:?] {}