ValueError: Invalid value for `superimpose`: Upsampling not supported.

This error start appearing a day ago when I was testing several strategies.
I didnt changed anything in my codes before this happened.

The backtest doesnt continue and and the chart does not appear.

```
C:\Users\admin\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\backtesting\backtesting.py:1042: FutureWarning: Index.is_all_dates is deprecated, will be removed in a future version. check index.inferred_type instead
if (not data.index.is_all_dates and
C:\Users\admin\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\backtesting\backtesting.py:1057: FutureWarning: Index.__and__ operating as a set operation is deprecated, in the future this will be a logical operation matching Series.__and__. Use index.intersection(other) instead
if len(data.columns & {'Open', 'High', 'Low', 'Close', 'Volume'}) != 5:
ValueError: Invalid value for `superimpose`: Upsampling not supported.
```

Reproduce the failing backtest with the reported strategy setup and inspect backtesting.py around lines 1042 and 1057, where the warnings appear before the superimpose error. Trace the handling of the superimpose value and confirm that the backtest completes and its chart appears without the ValueError.

Written by the indexing model from the issue text.