I really need help!

I'm new to this whole thing and I don't know about your first EA but mine has been exhausting so far but I keep learning new stuff so it's kind of fun. Here is the deal as simply as I can put: If the sell condition is met I'd like to sell and then close all buy orders and vice versa. I keep getting orderClose error 138. Now I know what this errors means, I've read the book but since I've got the newbie syndrome I don't know what to do about it in my code. People in this forum have been very helpful to me so far and I'm sure you can help so thanks in advance!
Here is my code:

  if (sellCondition && check!=Low[1]+Close[2] )                                           
  {
  send=OrderSend(Symb,OP_SELL,lots,Bid,2,Ask+600*Point,Ask-2000*Point);
  if (send)
  {
 check=Low[1]+Close[2];   // this prevents the repetition of the orderSend and close for every tick
  
    for(i= OrdersTotal() - 1; i>=0; i--)       
   {
   if(OrderSelect(i,SELECT_BY_POS)==true)
   {
   Tip=OrderType();                
   if (Tip==0)
   {
   Ticket_Buy=OrderTicket();
  double lot=OrderLots();
    RefreshRates();
    Ans=OrderClose(Ticket_Buy,lot,Bid,2);
     }
   }
   }
  }
}
if (buyCondition && check!=Low[1]+Close[2] )                                           
  {
  send=OrderSend(Symb,OP_BUY,lots,Ask,2,Bid-600*Point,Bid+2000*Point);
  if (send)
  {
  check=Low[1]+Close[2];
    for(i= OrdersTotal() - 1; i>=0; i--)       
   {
   if(OrderSelect(i,SELECT_BY_POS)==true)
   {
   Tip=OrderType();                
   if (Tip==0)
   {
   Ticket_Sell=OrderTicket();
  lot=OrderLots();
    RefreshRates();
   Ans=OrderClose(Ticket_Sell,lot,Ask,2);
      }
   }
   }
  }
  }