Dash Plotly error : Stuck on Loading... page after server run

Question

Could you please help me with this error. The page stuck with loading.... message but never loads.

There's no error on server run.

This is my code:

import dash
import dash_core_components as dcc
import dash_html_components as html
import pandas as pd
import plotly.graph_objects as go
import numpy as np

df1 = pd.read_csv('lines.csv', encoding='latin-1', low_memory=False)
df1.rename(columns={"Order Type": "OrderType"}, inplace=True)

df1.loc[(df1.Processed != '?'), 'OrderTypeProcessed'] = df1['Qty']
df1.loc[(df1.Processed == '?'), 'OrderTypeProcessed'] = 0

df2 = df1.groupby('OrderType').sum()
df3 = df1.groupby(' Packout station Number').sum()
df4 = df1.groupby('Packout station Operator').sum()
df5 = df1.groupby('Product Category').sum()
df1.rename(columns={df1.columns[12]:'Received Time'}, inplace=True)
df6 = df1.groupby('Received Time').sum()
df7 = df1.groupby('Cut Off Time').sum()




df2.reset_index(inplace=True)
df3.reset_index(inplace=True)
df4.reset_index(inplace=True)
df5.reset_index(inplace=True)
df6.reset_index(inplace=True)
df7.reset_index(inplace=True)

df5['Product Category'] = df5['Product Category'].str.upper()

app = dash.Dash()
app.layout = html.Div([
    html.H1(children = "Dashboard Para Gestão De Produção - Caio",
    style = {'textAlign' : 'center',}),
        html.Div(children = "_______________________________",
                 style = {'textAlign' : 'center',}),

    dcc.Graph(
        id = 'lines-chart',
        figure = {
            'data' : [
        {'x': df2['OrderType'], 'y': df2['Qty'],                'type': 'bar', 'name': 'Dropado'},
        {'x': df2['OrderType'], 'y': df2['OrderTypeProcessed'], 'type': 'bar', 'name': 'Realizado'}


            ],
            'layout' : {
                'title': 'Grafico'
            }
        }
    )

])


if __name__ == '__main__':
    app.run_server(port =4050)

Could you please take a look, I tried call assets in app, however it also didn't work.

Here is the page after server run.

Answer 1

Here is the image that not load in question.