Concerned by North Korea's artillery attack on a South Korean island, the 1996 beauty queen winner got muddled when tweeting for world peace via her @aliciamachado77 account.
"Tonight I want to ask you to join me in a prayer for peace, that these attacks between the Chinas do not make our situation worse," she wrote late on Tuesday.
Her gaffe unleashed a rush of insulting posts, prompting her to go offline. "I now have a lot of psychopaths on the account and it's best I start another one, kisses," she signed off, according to Venezuelan media.
Machado is no stranger to unwelcome attention.
She caused a media furore by gaining 22 pounds (10 kg) right after her 1996 triumph and Miss Universe organisation president Donald Trump called her an "eating machine."
