Error in Console

Failed to call hook 'OnEntityTakeDamage' on plugin 'InstantBarrels v1.0.2' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.InstantBarrels.OnEntityTakeDamage (LootContainer container, HitInfo info) [0x00027] in <b4ed6404644a40a8be186d8cd88f18c5>:0
at Oxide.Plugins.InstantBarrels.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0007e] in <b4ed6404644a40a8be186d8cd88f18c5>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <dfcb48ea05694263bbc08e62a39c274c>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <dfcb48ea05694263bbc08e62a39c274c>:0