I tried removing ichorcloth temporarily.
I tried: "mods.thaumcraft.Arcane.removeRecipe(ThaumicTinkerer:ichorclothHelm);"
and it gave me: "ERROR: Error executing Thaumcraft.zs: null"

Thaumcraft integration is broken atm, from what I understand.

I need more information on this, it never just gives that one line of code, check the minetweaker log, it will give a stacktrace.

Fixed by @Zixxl