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get Order Modify() Error 130
hi guys. i have this type of error in this function, why happening? void tpsl () { double tp = 0 ; double sl= 0 ; for ( int i= 0 ;i< OrdersTotal () ; i++) { if ( OrderSelect (i, SELECT_BY_POS , MODE_TRADES )) { if ( OrderType ()== OP_BUY ) {