I am trying to solve this error couple of months I will be very thankful if you help me with that and guide where the problem could be
if confirm9E
mark_long = 0
mark_short = 0
for i=0 to 9
if transport_buy[i]
mark_long := 1
if transport_sell[i]
mark_short := 1
if not mark_long
final_long_backtest:=0
if not mark_short
final_short_backtest:=0
when I turn on the "confirm9E" I get that error