A lot of EA could be "profitable in backtest" but not in live trading.
Your algo triggered buy when
In reality, in so called oversold, there is often a bull candle and then the market continue to fall
The error message itself has told you the problem
It's normal that backtest result is unlike live one, in particular, MT4. MT5 may be better.
Simply because backtest is not live
The EA works, just your conditions have yet been met
Start a small project
condition --> once per bar --> buy/sell
Learn coding is good as you can do your own customized indicator
So you wouldn't waste time on customized indicator with unknown details
You should also put the indicator in the MQL indicator folder
Does the error affect your computation or can you neglect it?
@arezovafaey
You use EA to gamble/trade in the market is one thing. You, as a programmer, write EA for others, that is good, is another thing
If you are talking about being a programmer, no one would discourage you to do so
Close what trade? Do you have any trade?
The one in MT4 do not have the start parameter. You may use customized indicator instead
@Steven888
I was also aware the limitation as I often used long name.
In your case, you may try to manually edit your saved config file of the optimized EA parameters. As I can recall, it is just a text file with a list of variables set to specific values
@jstap
Thanks for your help. Yes, the boxes worked well with variables as alwsys. Just the case I specific did not work.
what is your variable loss_timer? It is not a valid input for timeframe
Re-create problem: