I have an issue. When I hit a bot or an object my spinner immediately stops without doing any damage
You are correct. Spinner damage has not yet been included. The entire damage system itself is just a placeholder right now, and will be undergoing a complete rewrite over the next few months.
We do have a quick fix for spinner damage coming out later this week which should provide a basic energy-based damage system, as well as fixing a bug which prevents spinners from knocking their target around. Maybe by Thursday?