Using Rotating Pickups

Failed to call hook 'OnItemPickup' on plugin 'ActivityRewards v0.1.6' (NullReferenceException: Object reference not set to an instance of an object)

at Oxide.Plugins.ActivityRewards.OnItemPickup (Item item, BasePlayer player, DroppedItem droppedItem) [0x0001b] in <4911625972ad473fa3d8aab85e975598>:0

at Oxide.Plugins.ActivityRewards.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00815] in <4911625972ad473fa3d8aab85e975598>: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 <d59b507fd76240e5b62228d0eae39b73>:0

at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <d59b507fd76240e5b62228d0eae39b73>:0

Changed Status from Pending to Work in Progress

Hello, I didn't quite understand the title 'Using Rotating Pickups'.

https://lone.design/product/zfloatingloot/  

When exactly does this error occur? Which specific item? I tried with different items but didn't get any error.
And just to clarify, is it carbon or oxide?

is oxide and on all items dropped on the ground i get that in console