Why backtest is false?

[Erdenebayar Lamjav]

When I bougth ea robot, that robot earn 100k for 5 days. backtest result is very good. And I test it on demo account, it open only 2 pos dor 5 days, and i suprise that result. I test it that time, ea robot open too many position. Is this ea read history data from mt4?

[Carl Schreiber]

Erdenebayar Lamjav:
When I bougth ea robot, that robot earn 100k for 5 days. backtest result is very good. And I test it on demo account, it open only 2 pos dor 5 days, and i suprise that result. I test it that time, ea robot open too many position. Is this ea read history data from mt4?

Talk to the one from whom you have bought the robot!

[Osama Shaban]

I'm really sorry to say you mostly (Not 100% sure yet) that you fall about what I talk about it here ...

https://www.mql5.com/en/forum/193015

Please update  what will happen with you.

Wishing you all the best.