So I looked up on roblox wiki and it said that to use The EquipTool: function you have to have the tool in workspace. And then I tested the equipTool method. Here is the script, and then the error:
game.Workspace.yourchicken2.Humanoid:EquipTool(game.Workspace.Hollowwep)
THE ERROR:
UnequipTools can only be called on a Humanoid with a corresponding Player object.
You put yourchicken2. Did you do that on purpose? Oh and... It can only be called on an actual player.