CT ThaumcraftDump error

[15:22:30] [Server thread/WARN] [minecraft/CommandHandler]: Couldn't process command: ct thaumcraftDump
java.lang.IllegalArgumentException: stack cannot be null
	at crafttweaker.mc1120.item.MCItemStack.<init>(MCItemStack.java:75) ~[MCItemStack.class:?]
	at com.blamejared.mtlib.helpers.LogHelper.getStackDescription(LogHelper.java:59) ~[LogHelper.class:?]
	at com.blamejared.compat.thaumcraft.handlers.ThaumCraft$1.lambda$executeCommand$3(ThaumCraft.java:51) ~[ThaumCraft$1.class:?]
	at java.util.HashMap.forEach(Unknown Source) ~[?:1.8.0_271]
	at com.blamejared.compat.thaumcraft.handlers.ThaumCraft$1.executeCommand(ThaumCraft.java:45) ~[ThaumCraft$1.class:?]
	at crafttweaker.mc1120.commands.CTChatCommand.execute(CTChatCommand.java:73) ~[CTChatCommand.class:?]
	at net.minecraft.command.CommandHandler.tryExecute(CommandHandler.java:119) [bj.class:?]
	at net.minecraft.command.CommandHandler.executeCommand(CommandHandler.java:91) [bj.class:?]
	at net.minecraft.network.NetHandlerPlayServer.handleSlashCommand(NetHandlerPlayServer.java:962) [pa.class:?]
	at net.minecraft.network.NetHandlerPlayServer.processChatMessage(NetHandlerPlayServer.java:941) [pa.class:?]
	at net.minecraft.network.play.client.CPacketChatMessage.processPacket(SourceFile:37) [la.class:?]
	at net.minecraft.network.play.client.CPacketChatMessage.processPacket(SourceFile:9) [la.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [hv$1.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_271]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_271]
	at net.minecraft.util.Util.runTask(SourceFile:529) [h.class:?]
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:723) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:668) [MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:185) [chd.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_271]
[15:22:30] [Client thread/INFO] [minecraft/GuiNewChat]: [CHAT] An unknown error occurred while attempting to perform this command