Traceback (most recent call last):
File "E:\veighna_studio\Lib\site-packages\vnpy_ctabacktester\ui\widget.py", line 294, in process_backtesting_finished_event
self.statistics_monitor.set_data(statistics)
~~~~~~^^^^^^^^^^^^
File "E:\veighna_studio\Lib\site-packages\vnpy_ctabacktester\ui\widget.py", line 616, in set_data
data["capital"] = f"{data.get['capital',0]:,.2f}"
~~^^^^^^^^^^^^^
TypeError: 'builtin_function_or_method' object is not subscriptable

vnpy/vnpy_ctabacktester/veighna_studio的版本分别是？
可以描述一下你是在做什么操作的时候报错的