Hello,

I am facing this error while backtesting and somehow it fails after running the backtest until midway. The same code works with smaller universe.

Code Line - 

for time, row in history.loc[symbol].iterrows():

Error - 

Runtime Error: TypeError : object is not callable
at OnSecuritiesChanged in main.py:line 52
at __init__ in main.py:line 138
TypeError : object is not callable (Open Stacktrace)