Hi guys, here's the console error code. A capital letter //setbiome Ocean -- I don't recall seeing this error before, but it did not affect functionality or affect the server save for a second or two of lag while the error code ran in the console. As the impact on the server was so limited, I am only reporting this because the console told me to. Report this error!

Using worldedit-bukkit-7.2.0-beta-04 - about to upgrade to 05, which I just saw today.
--> Paper version git-Paper-189 (MC: 1.16.2) API version 1.16.2-R0.1-SNAPSHOT)

ERROR An unexpected error while handling a WorldEdit command
29.09 22:55:32 [Server] INFO java.lang.IllegalStateException: key must be lowercase
29.09 22:55:32 [Server] INFO at com.google.common.base.Preconditions.checkState(Preconditions.java:444) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.registry.Registry.get(Registry.java:48) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.registry.NamespacedRegistry.get(NamespacedRegistry.java:47) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.command.argument.RegistryConverter.convert(RegistryConverter.java:101) ~[?:?]
29.09 22:55:32 [Server] INFO at org.enginehub.piston.impl.CommandParser.lambda$isAcceptedByTypeParsers$7(CommandParser.java:498) ~[?:?]
29.09 22:55:32 [Server] INFO at java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:449) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at org.enginehub.piston.impl.CommandParser.isAcceptedByTypeParsers(CommandParser.java:493) ~[?:?]
29.09 22:55:32 [Server] INFO at org.enginehub.piston.impl.CommandParser.parseRegularArgument(CommandParser.java:430) ~[?:?]
29.09 22:55:32 [Server] INFO at org.enginehub.piston.impl.CommandParser.parse(CommandParser.java:341) ~[?:?]
29.09 22:55:32 [Server] INFO at org.enginehub.piston.impl.CommandManagerImpl.parse(CommandManagerImpl.java:240) ~[?:?]
29.09 22:55:32 [Server] INFO at org.enginehub.piston.CommandManager.execute(CommandManager.java:154) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.extension.platform.PlatformCommandManager.handleCommand(PlatformCommandManager.java:494) ~[?:?]
29.09 22:55:32 [Server] INFO at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) ~[?:?]
29.09 22:55:32 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_211]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.util.eventbus.MethodEventHandler.dispatch(MethodEventHandler.java:58) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.util.eventbus.EventHandler.handleEvent(EventHandler.java:73) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.util.eventbus.EventBus.dispatch(EventBus.java:193) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.util.eventbus.EventBus.post(EventBus.java:181) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.worldedit.bukkit.WorldEditPlugin.onCommand(WorldEditPlugin.java:375) ~[?:?]
29.09 22:55:32 [Server] INFO at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:55) ~[?:?]
29.09 22:55:32 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at org.bukkit.craftbukkit.v1_16_R2.CraftServer.dispatchCommand(CraftServer.java:800) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.PlayerConnection.handleCommand(PlayerConnection.java:1908) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.PlayerConnection.a(PlayerConnection.java:1719) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:23) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.TickTask.run(SourceFile:18) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.MinecraftServer.ba(MinecraftServer.java:1135) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.MinecraftServer.executeNext(MinecraftServer.java:1128) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.IAsyncTaskHandler.executeAll(IAsyncTaskHandler.java:95) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.MinecraftServer.a(MinecraftServer.java:1264) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.MinecraftServer.w(MinecraftServer.java:999) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at net.minecraft.server.v1_16_R2.MinecraftServer.lambda$a$0(MinecraftServer.java:177) ~[patched_1.16.2.jar:git-Paper-189]
29.09 22:55:32 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]