Tailspin

a situation in which something starts to fail or lose value and gets more and more out of control;

• But it has been hobbled in recent years by US export restrictions, which sent the company into a tailspin.
  하지만 최근 몇 년 동안 미국의 수출 제한 조치로 인해 어려움을 겪고 있습니다.