Unable to load app 0 (mountpoint='') (callable not found or import error)

Dash Python
1

Hi evreone!

I am trying to deploy test Dash app on my server (Ubuntu 20.04 but I am having issues deploying it

I continue to get the error every time.
I am not an experienced programmer, but I have been playing with dash and plotly lately; I think it is a great tool.
I really want this to work as I would like my organization to buy some licenses in the future.

I would appreciate any help you can give me.

Below is the code and the error:

Error:
Dec 15 10:15:13 dimonsdash uwsgi[1310]: unable to load app 0 (mountpoint=’’) (callable not found or import error)

log server 

Dec 15 10:15:12 dimonsdash uwsgi[1310]: *** Operational MODE: preforking ***
Dec 15 10:15:13 dimonsdash uwsgi[1310]: unable to load app 0 (mountpoint='') (callable not found or import error)
Dec 15 10:15:13 dimonsdash uwsgi[1310]: *** no app loaded. going in full dynamic mode ***
Dec 15 10:15:13 dimonsdash uwsgi[1310]: *** uWSGI is running in multiple interpreter mode ***

project.py 

import dash
import dash_core_components as dcc
import dash_html_components as html
from flask import Flask

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']

app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
server = app.server

app.layout = html.Div([
    html.H2('Hello World'),
    dcc.Dropdown(
        id='dropdown',
        options=[{'label': i, 'value': i} for i in ['LA', 'NYC', 'MTL']],
        value='LA'
    ),
    html.Div(id='display-value')
])


@app.callback(dash.dependencies.Output('display-value', 'children'),
              [dash.dependencies.Input('dropdown', 'value')])
def display_value(value):
    return 'You have selected "{}"'.format(value)

wsgi.py 

from project import server as application

if __name__ == '__main__':
    application.run(debug=True, host='0.0.0.0')