when i go to craft one i get this error

Failed to call hook 'Craft' on plugin 'ExtendedRecycler v1.2.6' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.ExtendedRecycler.CanCraft (BasePlayer player) [0x000e6] in <56bd901ab4fb4e69994d810bb0826dd2>:0

  at Oxide.Plugins.ExtendedRecycler.Craft (BasePlayer player) [0x00000] in <56bd901ab4fb4e69994d810bb0826dd2>:0

  at Oxide.Plugins.ExtendedRecycler.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0088f] in <56bd901ab4fb4e69994d810bb0826dd2>:0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <42f9bedc659b4f4786eb778d3cd58968>:0

  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <15f61ddda771464d8246ebdce8ff4811>:0

  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <15f61ddda771464d8246ebdce8ff4811>:0

EDIT: when i got to give myself one through admin it works though