ArrayIndexOutOfBoundsException in command autocompletion

[mvolotov]

Velocity 3.0.1
Backend server: Paper 1.16.5#768

The following errors appear when entering commands in the console. They are generated every time it tries to execute autocompletion in the game.

[15:35:56 ERROR]: Arguments node cannot provide suggestions
java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
        at me.xneox.epicguard.core.command.CommandHandler.handleSuggestions(CommandHandler.java:82) ~[?:?]
        at me.xneox.epicguard.velocity.VelocityCommandHandler.suggest(VelocityCommandHandler.java:35) ~[?:?]
        at me.xneox.epicguard.velocity.VelocityCommandHandler.suggest(VelocityCommandHandler.java:23) ~[?:?]
        at com.velocitypowered.api.command.InvocableCommand.suggestAsync(InvocableCommand.java:51) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.registrar.InvocableCommandRegistrar.lambda$createLiteral$5(InvocableCommandRegistrar.java:106) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.brigadier.VelocityArgumentCommandNode.listSuggestions(VelocityArgumentCommandNode.java:88) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.SuggestionsProvider.getArgumentsNodeSuggestions(SuggestionsProvider.java:261) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.SuggestionsProvider.provideArgumentsSuggestions(SuggestionsProvider.java:230) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.SuggestionsProvider.provideSuggestions(SuggestionsProvider.java:111) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.SuggestionsProvider.provideSuggestions(SuggestionsProvider.java:84) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.command.VelocityCommandManager.offerSuggestions(VelocityCommandManager.java:229) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.connection.client.ClientPlaySessionHandler.handleCommandTabComplete(ClientPlaySessionHandler.java:490) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.connection.client.ClientPlaySessionHandler.handle(ClientPlaySessionHandler.java:200) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.protocol.packet.TabCompleteRequest.handle(TabCompleteRequest.java:140) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.connection.MinecraftConnection.channelRead(MinecraftConnection.java:142) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.tryDecode(MinecraftDecoder.java:89) ~[server.jar:3.0.1]
        at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.channelRead(MinecraftDecoder.java:58) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[server.jar:3.0.1]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[server.jar:3.0.1]
        at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[server.jar:3.0.1]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) ~[server.jar:3.0.1]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[server.jar:3.0.1]
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[server.jar:3.0.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[server.jar:3.0.1]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[server.jar:3.0.1]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[server.jar:3.0.1]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[server.jar:3.0.1]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[server.jar:3.0.1]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[server.jar:3.0.1]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[server.jar:3.0.1]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) ~[server.jar:3.0.1]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[server.jar:3.0.1]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[server.jar:3.0.1]
        at java.lang.Thread.run(Thread.java:831) [?:?]```