I was on a server and it suddenly crashed. It crashed my client I dont know if it also crashed the server. I was minign I dont know if anothe rplayer triggered something - either way it should not crash.
java.lang.NullPointerException: Cannot read field "chapterList" because the return value of "net.joefoxe.hexerei.data.books.BookManager.getBookEntries()" is null
at net.joefoxe.hexerei.tileentity.BookOfShadowsAltarTile.clickedNext(BookOfShadowsAltarTile.java:1058) ~[hexerei-0.2.2.jar%23109!/:0.2.2] {re:classloading}
at net.joefoxe.hexerei.tileentity.BookOfShadowsAltarTile.tick(BookOfShadowsAltarTile.java:906) ~[hexerei-0.2.2.jar%23109!/:0.2.2] {re:classloading}
at net.joefoxe.hexerei.block.custom.Altar.lambda$getTicker$2(Altar.java:162) ~[hexerei-0.2.2.jar%23109!/:0.2.2] {re:classloading}
at net.minecraft.world.level.chunk.LevelChunk$BoundTickingBlockEntity.m_142224_(LevelChunk.java:673) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:classloading}
at net.minecraft.world.level.chunk.LevelChunk$RebindableTickingBlockEntityWrapper.m_142224_(LevelChunk.java:766) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:classloading}
at net.minecraft.world.level.Level.m_46463_(Level.java:476) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:mixins.hammerlib.json:LevelMixin,pl:mixin:APP:strawgolem.forge.mixins.json:GrowthMixin,pl:mixin:APP:imm_ptl.mixins.json:common.MixinLevel,pl:mixin:APP:lootr.mixins.json:MixinLevel,pl:mixin:A}
at net.minecraft.client.multiplayer.ClientLevel.m_104804_(ClientLevel.java:208) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:architectury.mixins.json:MixinClientLevel,pl:mixin:APP:imm_ptl.mixins.json:client.MixinClientLevel,pl:mixin:APP:imm_ptl.mixins.json:client.sound.MixinClientLevel_Sound,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91398_(Minecraft.java:1693) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:bookshelf.common.mixins.json:client.AccessorMinecraft,pl:mixin:APP:balm.mixins.json:MinecraftMixin,pl:mixin:APP:botania_xplat.mixins.json:client.AccessorMinecraft,pl:mixin:APP:better_loading_screen-common.mixins.json:MixinMinecraft,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:ae2.mixins.json:PickColorMixin,pl:mixin:APP:imm_ptl.mixins.json:client.MixinMinecraft,pl:mixin:APP:imm_ptl.mixins.json:client.block_manipulation.MixinMinecraft_B,pl:mixin:APP:imm_ptl.mixins.json:client.sync.MixinMinecraft_RedirectedPacket,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1021) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:bookshelf.common.mixins.json:client.AccessorMinecraft,pl:mixin:APP:balm.mixins.json:MinecraftMixin,pl:mixin:APP:botania_xplat.mixins.json:client.AccessorMinecraft,pl:mixin:APP:better_loading_screen-common.mixins.json:MixinMinecraft,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:ae2.mixins.json:PickColorMixin,pl:mixin:APP:imm_ptl.mixins.json:client.MixinMinecraft,pl:mixin:APP:imm_ptl.mixins.json:client.block_manipulation.MixinMinecraft_B,pl:mixin:APP:imm_ptl.mixins.json:client.sync.MixinMinecraft_RedirectedPacket,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:665) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:bookshelf.common.mixins.json:client.AccessorMinecraft,pl:mixin:APP:balm.mixins.json:MinecraftMixin,pl:mixin:APP:botania_xplat.mixins.json:client.AccessorMinecraft,pl:mixin:APP:better_loading_screen-common.mixins.json:MixinMinecraft,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:ae2.mixins.json:PickColorMixin,pl:mixin:APP:imm_ptl.mixins.json:client.MixinMinecraft,pl:mixin:APP:imm_ptl.mixins.json:client.block_manipulation.MixinMinecraft_B,pl:mixin:APP:imm_ptl.mixins.json:client.sync.MixinMinecraft_RedirectedPacket,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:205) ~[client-1.18.2-20220404.173914-srg.jar%23173!/:?] {re:classloading,pl:runtimedistcleaner:A}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {re:mixin}
at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$launchService$0(CommonClientLaunchHandler.java:31) ~[fmlloader-1.18.2-40.2.1.jar%2317!/:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%235!/:?] {}
at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}
I was on a server and it suddenly crashed. It crashed my client I dont know if it also crashed the server. I was minign I dont know if anothe rplayer triggered something - either way it should not crash.