'DataFrame' object has no attribute 'splitlines'

This error message indicates that you are trying to use the `splitlines` method on a `DataFrame` object in your code, but this method does not exist for `DataFrame` objects.

The `splitlines` method is a string method that splits a string into a list of strings at line breaks. If you are trying to split text data in a column of a `DataFrame` into separate lines, you can use the `str.split()` method instead.

For example, if you have a `DataFrame` called `df` with a column called `text` that contains text data, you can split the text into lines like this:

df['text_lines'] = df['text'].str.split('\n')

This will create a new column called `text_lines` in the `DataFrame` that contains a list of strings, with each string representing a line of text from the original `text` column.