90 Day Fiancé star Elizabeth Castravet is paying tribute to her dad, Chuck Potthast, after his death. "Two weeks ago, tragedy struck our family and it has left us completely shattered. My sweet, loving, and caring dad went to heaven. We're trying to figure out how to navigate our lives and move forward without him," Elizabeth, 34, wrote via Instagram on Sunday, November 23, in a joint post with Andrei Castravet. The message concluded, "Please respect our privacy during this extremely difficult time.