Why is Nexo banned in the US?

Could you please explain to me why Nexo is banned in the United States? I'm quite curious about the reasons behind this decision. Is it due to regulatory concerns? Or perhaps some specific issues with Nexo's operations that don't align with US laws? Could you elaborate on the reasons for this ban and its potential impact on Nexo and its users in the US? I'm interested in understanding the broader context and implications of this situation. Thank you for your insights.