Thanks for the reply:
yes, I have run the layer setup.
This is an error that I have, I don't know if it is related to it.
NullReferenceException: Object reference not set to an instance of an object
Opsive.UltimateCharacterController.Inventory.ItemDefinitionAmount.get_ItemIdentifier () (at Assets/Opsive/UltimateCharacterController/Scripts/Inventory/ItemDefinitionAmount.cs:32)
Opsive.UltimateCharacterController.Inventory.Inventory.LoadDefaultLoadout () (at Assets/Opsive/UltimateCharacterController/Scripts/Inventory/Inventory.cs:49)
Opsive.UltimateCharacterController.Inventory.InventoryBase.Start () (at Assets/Opsive/UltimateCharacterController/Scripts/Inventory/InventoryBase.cs:122)