Why was kava banned in Australia?

Could you elaborate on the reasons behind the ban of Kava in Australia? I'm curious to understand the regulatory framework and concerns that led to this decision. As a cryptocurrency and finance professional, I'm always interested in how different jurisdictions assess and regulate emerging financial technologies. What specific aspects of Kava did the Australian authorities find problematic? Was it a matter of consumer protection, potential for fraud, or other regulatory considerations? Clarifying these details would greatly help me understand the broader context and implications of this ban.