What money did Sparta ban?

Could you please elaborate on the historical context and specific reasons behind Sparta's decision to ban a particular form of money? I'm intrigued to understand what type of money was prohibited, and what motivated Sparta to take such a drastic measure. Was it a reaction to economic instability, or was it driven by social and political factors? Additionally, how did this ban impact the economy and society of Sparta, and what were the long-term consequences of this decision?