Why is Appen falling?

Could you please elaborate on the reasons behind the decline in Appen's stock price? Are there any specific factors that have contributed to this downturn, such as changes in market sentiment, company performance, or industry trends? It would be insightful to understand the underlying dynamics that are driving this negative momentum and how investors are responding to these developments. Additionally, what are the potential implications of this decline for Appen's future prospects and the broader cryptocurrency and finance landscape?