1.  
2. [14:06:03] [Server thread/ERROR]: An unexpected error while handling a WorldEdit command
3. java.lang.IllegalStateException: Regen failed
4.         at com.sk89q.worldedit.fabric.FabricWorld.regenerate(FabricWorld.java:317) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
5.         at com.sk89q.worldedit.command.RegionCommands.regenerate(RegionCommands.java:431) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
6.         at com.sk89q.worldedit.command.RegionCommandsRegistration.cmd$_regen(RegionCommandsRegistration.java:576) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
7.         at org.enginehub.piston.CommandManager.execute(CommandManager.java:157) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
8.         at com.sk89q.worldedit.extension.platform.PlatformCommandManager.handleCommand(PlatformCommandManager.java:494) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
9.         at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
10.         at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?]
11.         at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
12.         at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?]
13.         at com.sk89q.worldedit.util.eventbus.MethodEventHandler.dispatch(MethodEventHandler.java:58) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
14.         at com.sk89q.worldedit.util.eventbus.EventHandler.handleEvent(EventHandler.java:73) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
15.         at com.sk89q.worldedit.util.eventbus.EventBus.dispatch(EventBus.java:193) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
16.         at com.sk89q.worldedit.util.eventbus.EventBus.post(EventBus.java:181) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
17.         at com.sk89q.worldedit.fabric.CommandWrapper.lambda$register$0(CommandWrapper.java:64) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
18.         at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:263) ~[brigadier-1.0.18.jar:?]
19.         at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:177) ~[brigadier-1.0.18.jar:?]
20.         at net.minecraft.class_2170.method_9249(class_2170.java:251) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
21.         at net.minecraft.class_3244.method_14370(class_3244.java:1239) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
22.         at net.minecraft.class_3244.method_31286(class_3244.java:1223) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
23.         at net.minecraft.class_3244.method_12048(class_3244.java:1206) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
24.         at net.minecraft.class_2797.method_12115(class_2797.java:30) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
25.         at net.minecraft.class_2797.method_11054(class_2797.java:7) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
26.         at net.minecraft.class_2600.method_11072(class_2600.java:21) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
27.         at net.minecraft.class_3738.run(class_3738.java:18) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
28.         at net.minecraft.class_1255.method_18859(class_1255.java:151) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
29.         at net.minecraft.class_4093.method_18859(class_4093.java:23) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
30.         at net.minecraft.server.MinecraftServer.method_24306(MinecraftServer.java:783) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
31.         at net.minecraft.server.MinecraftServer.method_18859(MinecraftServer.java:167) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
32.         at net.minecraft.class_1255.method_16075(class_1255.java:125) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
33.         at net.minecraft.server.MinecraftServer.method_20415(MinecraftServer.java:765) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
34.         at net.minecraft.server.MinecraftServer.method_16075(MinecraftServer.java:759) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
35.         at net.minecraft.class_1255.method_18857(class_1255.java:134) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
36.         at net.minecraft.server.MinecraftServer.method_16208(MinecraftServer.java:744) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
37.         at net.minecraft.server.MinecraftServer.handler$bdh000$modifiedRunLoop(MinecraftServer.java:4902) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
38.         at net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:671) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
39.         at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:274) ~[intermediary-fabric-loader-0.11.3-1.17.jar:?]
40.         at java.lang.Thread.run(Thread.java:831) [?:?]
41. Caused by: java.lang.IllegalStateException: Unable to map GeneratorOptions: Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@451ceaca; Unknown tag: net.minecraft.class_5394@3ab06963; Unknown tag: net.minecraft.class_5394@68618198; Unknown tag: net.minecraft.class_5394@68618198; Unknown tag: net.minecraft.class_5394@68618198; Unknown tag: net.minecraft.class_5394@68618198; Unknown tag: net.minecraft.class_5394@68618198; Unknown tag: net.minecraft.class_5394@68618198; Unknown tag: net.minecraft.class_5394@68618198
42.         at com.sk89q.worldedit.fabric.FabricWorld.lambda$doRegen$2(FabricWorld.java:349) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
43.         at com.mojang.datafixers.util.Either$Right.map(Either.java:99) ~[datafixerupper-4.0.26.jar:?]
44.         at com.sk89q.worldedit.fabric.FabricWorld.doRegen(FabricWorld.java:346) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
45.         at com.sk89q.worldedit.fabric.FabricWorld.regenerate(FabricWorld.java:315) ~[worldedit-fabric-mc1.17-7.2.6-SNAPSHOT-dist.jar:?]
46.         ... 36 more
47. [14:06:03] [Render thread/INFO]: [CHAT] [14:06:03] Please report this error: [See console]
48. [14:06:03] [Render thread/INFO]: [CHAT] [14:06:03] java.lang.IllegalStateException: Regen failed
49.