The ban is effective immediately and pending the outcome of police investigations into the matter.
The individual who sent the message has been interviewed by police and Port Vale and Orient say he “is now being dealt with by the criminal justice system”.
Port Vale owner Carol Shanahan has made contact with Vigouroux to personally apologise on behalf of the club.
Orient said: “As part of initial discussions, Port Vale’s safety officer was advised of the situation along with our dedicated football officer who immediately contacted Lawrence privately to apologise and explain that she would investigate the matter thoroughly.
“Port Vale also contacted the CEO and secretary at Leyton Orient FC to advise them of the steps that had been taken on the evening of the game and reassure them that swift action would be taken.
“Leyton Orient would like to thank the staff at Port Vale for their quick and efficient handling of the process.”