When I use /bitcoin reload, it will display an error on the console.

[Li-Jihan]

When I use /bitcoin reload, it will display an error on the console.
git-Paper-443 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
plugins v2.5

org.bukkit.command.CommandException: Unhandled exception executing command 'bitcoin' in plugin Bitcoin v2.5
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.16.5.jar:git-Paper-443]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.16.5.jar:git-Paper-443]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.dispatchCommand(CraftServer.java:807) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.PlayerConnection.handleCommand(PlayerConnection.java:2021) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.PlayerConnection.c(PlayerConnection.java:1832) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:1785) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:23) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.TickTask.run(SourceFile:18) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.MinecraftServer.bb(MinecraftServer.java:1132) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.MinecraftServer.executeNext(MinecraftServer.java:1125) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.MinecraftServer.a(MinecraftServer.java:1199) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:996) ~[patched_1.16.5.jar:git-Paper-443]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173) ~[patched_1.16.5.jar:git-Paper-443]
at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.IllegalStateException: Duplicate recipe ignored with ID bitcoin:computerrecipe
at net.minecraft.server.v1_16_R3.CraftingManager.addRecipe(CraftingManager.java:78) ~[patched_1.16.5.jar:git-Paper-443]
at org.bukkit.craftbukkit.v1_16_R3.inventory.CraftShapedRecipe.addToCraftingManager(CraftShapedRecipe.java:59) ~[patched_1.16.5.jar:git-Paper-443]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.addRecipe(CraftServer.java:1311) ~[patched_1.16.5.jar:git-Paper-443]
at org.bukkit.Bukkit.addRecipe(Bukkit.java:770) ~[patched_1.16.5.jar:git-Paper-443]
at us.donut.bitcoin.mining.ComputerManager.registerRecipe(ComputerManager.java:98) ~[?:?]
at us.donut.bitcoin.mining.ComputerManager.reload(ComputerManager.java:56) ~[?:?]
at us.donut.bitcoin.Bitcoin.reload(Bitcoin.java:61) ~[?:?]
at us.donut.bitcoin.BitcoinCommand.onCommand(BitcoinCommand.java:65) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.16.5.jar:git-Paper-443]
... 19 more