I am just getting started and are still on the free plan. Since I am an absolute newbie in QuantConnect I need to run every backtest a number of times before all errors are found. Even though I am on a free plan, if I look under “Pricing”, I see that I have an unlimited number of backtests. Whenever I start a backtest, in the results page I see a counter counting down how many backtests I have still available. How is this possible if I have an unlimited number of backtests?