/TradeLog throws an exception when disabled

[erikzimmermann]

[10:33:19 WARN]: java.lang.NullPointerException: Cannot invoke "String.replace(java.lang.CharSequence, java.lang.CharSequence)" because the return value of "de.codingair.tradesystem.utils.Lang.get(String)" is null
[10:33:19 WARN]:        at de.codingair.tradesystem.tradelog.commands.TradeLogCMD$2.runCommand(TradeLogCMD.java:72)
[10:33:19 WARN]:        at de.codingair.tradesystem.codingapi.server.commands.builder.special.MultiCommandComponent.runCommand(MultiCommandComponent.java:28)
[10:33:19 WARN]:        at de.codingair.tradesystem.codingapi.server.commands.builder.CommandBuilder.onCommand(CommandBuilder.java:227)
[10:33:19 WARN]:        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45)
[10:33:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159)
[10:33:19 WARN]:        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.dispatchCommand(CraftServer.java:807)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.PlayerConnection.handleCommand(PlayerConnection.java:2021)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.PlayerConnection.c(PlayerConnection.java:1832)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:1785)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.PacketPlayInChat.a(PacketPlayInChat.java:47)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.PacketPlayInChat.a(PacketPlayInChat.java:5)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:23)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.TickTask.run(SourceFile:18)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.MinecraftServer.bb(MinecraftServer.java:1132)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.MinecraftServer.executeNext(MinecraftServer.java:1125)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.MinecraftServer.sleepForTick(MinecraftServer.java:1086)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1000)
[10:33:19 WARN]:        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173)
[10:33:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:832)