Forex robots are a complete scam, at least those available to the general public.
If anyone had an automated system that could generate regular profits, they would use it to trade their own money. They would not be selling it for short money.
Forex is a market dominated by experienced professionals. Newbies almost always lose.
Read. Study. Take classes. Have some success in mutual funds or individual stocks before attempting more difficult markets like forex, commodities or options.