Kaggle TypeError: slice indices must be integers or None or have an __index__ method

I am trying to plot a seaborn histogram on a Kaggle notebook in this way:

 sns.distplot(myseries, bins=50, kde=True)

but I get this error:

TypeError: slice indices must be integers or None or have an __index__ method

Thi is the Kaggle notebook: https://www.kaggle.com/asindico/slice-indices-must-be-integers-or-none/

here is the series head:

0     5850000
1     6000000
2     5700000
3    13100000
4    16331452
Name: price_doc, dtype: int64