Nicky Hilton at Mercedes-Benz Fall 2007 L.A. Fashion Week at Smashbox Studios - Alvin Valley. Culver City, USA - 20.03.07

The hotel heiress and designer was scheduled to show off her latest clothing line on Saturday (24MAR07).

In a statement from her publicist BRIAN LONG, he cites "personal issues" for the cancellation.

Long adds, "She apologises profusely and she is already working with Fashion Week Miami to reschedule her runway show within the next month in Miami Beach."

Source: WENN