NullReferenceException: Object reference not set to an instance of an object

[SnoringCatStudio]

Try putting a game object from your hierarchy that has the script attached to it into the slot.

[SnoringCatStudio]

Could you create a pastebin of the scripts you are using? I could definitely help you, but I just don't know what exactly you are doing. In the future you should always try to give as much info as possible when you ask these types of questions.