OrderSend() error 129

Hey guys,

 I send 2 orders at the exact same time, yet one returns this error and the other gets placed just fine. Any reason why this would happen?

int buyMA=OrderSend(Symbol(),OP_BUY,Lotsize,Ask,3,Ask-(StopLoss*Point),Ask+(TakeProfit*Point),"Buy order",MagicNumber,0,clrBlue);
  if(buyMA>0) Print("Buy order placed successfully.");
  if(buyMA<0) Print("Buy order failed to place, error#",GetLastError());

int buyMAntp=OrderSend(Symbol(),OP_BUY,Lotsize,Ask,3,Ask-(StopLoss*Point),0,"Buy order",MagicNumber,0,clrBlue);
  if(buyMAntp>0) Print("Buy order placed successfully.");
  if(buyMAntp<0) Print("Buy order failed to place, error#",GetLastError());

 The second order fails. It has done this 2 days in a row now?

 Please help.