I get this when anything is crafted

Failed to call hook 'OnItemCraft' on plugin 'CraftingController v2.5.6' (NullReferenceException: Object reference not set to an instance of an object)
at Item.OnChanged () [0x0001d] in <dad742a49d6744978287b5e7ff2f06f8>:0
at Item.MarkDirty () [0x00000] in <dad742a49d6744978287b5e7ff2f06f8>:0
at Item.set_maxCondition (System.Single value) [0x00029] in <dad742a49d6744978287b5e7ff2f06f8>:0
at Item.Initialize (ItemDefinition template) [0x00010] in <dad742a49d6744978287b5e7ff2f06f8>:0
at ItemManager.Create (ItemDefinition template, System.Int32 iAmount, System.UInt64 skin) [0x00065] in <dad742a49d6744978287b5e7ff2f06f8>:0
at Oxide.Plugins.CraftingController.InstantBulkCraft (BasePlayer player, ItemDefinition item, System.Collections.Generic.List`1[T] stacks, System.Int32 craftSkin) [0x00022] in <4ec79538a5224577865696cd671135ea>:0
at Oxide.Plugins.CraftingController.OnItemCraft (ItemCraftTask task, BasePlayer crafter) [0x0018a] in <4ec79538a5224577865696cd671135ea>:0
at Oxide.Plugins.CraftingController.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x002d7] in <4ec79538a5224577865696cd671135ea>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0

I also don't get instant craft everything takes 1 second so if I bulk fraft it takes a wile to craft everything

"CraftingRate": 0.0,
"InstantBulkCraftIfRateIsZeroForPlayers": true,

I have tried differet way of changing this file and nothing works

{
  "Messages": {
    "BlockedItem": "{0} has already been blocked!",
    "BlockSucces": "{0} has been blocked from crafting.",
    "CraftBlockedItem": "{0} is blocked and can not be crafted!",
    "CurrentCraftingRate": "The crafting rate is set to {0}%.",
    "InvalidItem": "{0} is not a valid item. Please use the name of the item as it appears in the item list. Ex: Camp Fire",
    "ModifyCraftingRate": "The crafting rate is now set to {0}%.",
    "ModifyCraftingRateError": "The new crafting rate must be a number. 0 is instant craft, 100 is normal and 200 is double!",
    "ModifyCraftingRateItem": "The crafting rate for {0} is now set to {1}%.",
    "NoBlockedItems": "No items have been blocked.",
    "NoItemRate": "You need to specify an item and a new crafting rate for this command.",
    "NoItemSpecified": "You need to specify an item for this command.",
    "NoPermission": "You don't have permission to use this command.",
    "NoSlotsLeft": "You don't have enough slots to craft! Need {0}, have {1}!",
    "RemovedItem": "Removed individual crafting rate for {0}",
    "ShowBlockedItems": "The following items are blocked: ",
    "UnblockItem": "{0} is not blocked!",
    "UnblockSucces": "{0} is no longer blocked from crafting."
  },
  "Options": {
    "AllowCraftingWhenInventoryIsFull": false,
    "BlockedItems": [
      "Small Stash"
    ],
    "CompleteCurrentCraftingOnShutdown": false,
    "CraftingExperienceRate": 100.0,
    "CraftingRate": 0,
    "IndividualCraftingRates": {},
    "InstantBulkCraftForAdmins": true,
    "InstantBulkCraftForModerators": true,
    "InstantBulkCraftIfRateIsZeroForPlayers": true,
    "InstantCraftForAdmins": true,
    "InstantCraftForModerators": true,
    "ShowCraftingNotes": true
  },
  "Settings": {
    "ChatPrefix": "Crafting Controller",
    "ChatPrefixColor": "#008000ff"
  }
}​