When I reload my Scene, nothing works. I think it's because of a dontDestroyOnLoad gameObject

So when I reload my scene, no scripts work. Everything is where it should be... but I cant move, nothing spawns etc. I'm pretty sure it is something to do with a DontDestroyOnLoad object that spawns when my game starts. I don't know much about this, or what it does. I think it comes with the lighting pack that I am using. Sorry if the answer is obvious. I've done a fair bit of googling and a few people mentioned something similar. I simply want to reload my scene and everything resets. But as I said, the DontDestroyOnLoad gameObject, i think, breaks everything. THANKS!