Internal error [Not actually]

[reggiecow]

Hello! I have problem. Command /b choose {element} dont work, have error.
Error message: An internal error has occurred while attempting to perform the command.
CONSOLE ERROR:
[12:48:19 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'b' in plugin ProjectKorra v1.7.0
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[server.jar:git-Spigot-f928e7a-994b2aa]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[server.jar:git-Spigot-f928e7a-994b2aa]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:642) ~[server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1135) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:970) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Spigot-f928e7a-994b2aa]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_45]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_45]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:19) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:718) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:367) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:657) [server.jar:git-Spigot-f928e7a-994b2aa]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:560) [server.jar:git-Spigot-f928e7a-994b2aa]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: java.lang.NoSuchFieldError: §7Air
at com.projectkorra.projectkorra.Commands$1.onCommand(Commands.java:687) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[server.jar:git-Spigot-f928e7a-994b2aa]
... 15 more


How to fix it?

 

[Finn_Bueno_]

It says you typed /b choose §7air ... ?

 

[reggiecow]

It says you typed /b choose §7air ... ?

How to fix it? How to delete this '§7'

 

[reggiecow]

Fixed. I use InClassTranslator and found this text.