Box plot has lines for some reason

Can someone help explain to me why this box plot is showing lines in my top two, and I had to set my limit to 12 to show the top ten? I use this code earlier in my assignment and nothing like this shows up.

Code as follows:

    #Setting up enviornment
    import pandas as pd
    import matplotlib.pyplot as plt
    import seaborn as sns
    import numpy as np

    df = pd.read_csv('Video_Games.csv')

    %matplotlib inline

    #Most sucessful games NA after 2010

    #Boolean Filtering for year
    filtered_df = df[df[('Year_of_Release')] > 2010]

    #Bar Chart creation
    sns.barplot(x='Name', 
                y='NA_Sales',
                data = filtered_df.nlargest(12, 'NA_Sales'))
    plt.xticks(rotation=90)
    plt.title('Most Successful Games in North America by Revenue')
    plt.xlabel('Game Title')
    plt.ylabel('Revenue (in the Millions)')
    plt.rc('xtick', labelsize=8)
    plt.grid(axis="y")

Output:

Everything else about it is fine, just don’t understand why the lines show up, and why I need to set data = filtered_df.nlargest(12, ‘NA_Sales’) to 12 to show the top ten. Can anyone help?

>Solution :

Use errorbar=None as parameter of sns.barplot to remove the error bar:

sns.barplot(x='Name', 
            y='NA_Sales',
            data = filtered_df.nlargest(12, 'NA_Sales'),
            errorbar=None)