# Deploying Dash - H10 error

**URL:** <https://community.plotly.com/t/deploying-dash-h10-error/30814>\
**Category:** Dash Python\
**Created:** [November 2, 2019, 7:22pm UTC](https://community.plotly.com/t/deploying-dash-h10-error/30814 "2019-11-02T19:22:25Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![vspadotto](https://sea2.discourse-cdn.com/flex024/user_avatar/community.plotly.com/vspadotto/32/7727_2.png) [@vspadotto](https://community.plotly.com/u/vspadotto)\
**Post date:** [November 2, 2019, 7:22pm UTC](https://community.plotly.com/t/deploying-dash-h10-error/30814/1 "2019-11-02T19:22:25Z")

</div>

I am trying to deploy my first app, I followed all the steps required, but when I try to run it I get:

2019-11-02T19:13:35.901538+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/" [host=vit-dash-app-8486.herokuapp.com](http://host=vit-dash-app-8486.herokuapp.com) request\_id=be5a0b67-3d5b-4ed2-b3f5-98f42ff354a8 fwd=“64.180.1.156” dyno= connect= service= status=503 bytes= protocol=https

2019-11-02T19:13:37.749622+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/favicon.ico" [host=vit-dash-app-8486.herokuapp.com](http://host=vit-dash-app-8486.herokuapp.com) request\_id=46b75a76-175b-4055-b877-0bc69b1e68b0 fwd=“64.180.1.156” dyno= connect= service= status=503 bytes= protocol=https

This is my code:

```auto
import pandas as pd
import dash
import dash_table
import dash_html_components as html
import dash_core_components as dcc
import dash_table.FormatTemplate as FormatTemplate
from dash_table.Format import Sign
from dash.dependencies import Input, Output

sales = pd.read_excel('assets/sales.xls')

sales = sales.iloc[:][['Location','DOB','SDLY']]
var = ((sales['DOB']/sales['SDLY'])-1).round(3)
sales = pd.concat([sales,var], axis=1)
sales.columns=['Location','DOB','SDLY','Net Sales Variance']

guests = pd.read_excel('assets/guests.xls')

guests = guests.iloc[:][['Location','DOB','SDLY']]
var = ((guests['DOB']/guests['SDLY'])-1).round(3)
guests = pd.concat([guests,var], axis=1)
guests.columns=['Location','DOB','SDLY','Guest Count Variance']

data = sales.merge(guests, on='Location')

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.Div([
		html.H3('Daily Metrics',
				style={'textAlign': 'center',
					'padding':20}
				)
			]
		),
	html.Div([
		html.Div(id='graph',
			className='six columns'),
		html.Div([
		dash_table.DataTable(
			id='table',
			data=data.to_dict('records'),
            columns=[{
				'id': 'Location',
				'name': 'Location',
				'type': 'text'
				},
				{
				'name': 'Net Sales Variance',
                'id': 'Net Sales Variance',
                'type': 'numeric',
                'format': FormatTemplate.percentage(1).
							sign(Sign.positive)
                },
				{
				'name': 'Guest Count Variance',
                'id': 'Guest Count Variance',
                'type': 'numeric',
                'format': FormatTemplate.percentage(1).
							sign(Sign.positive)
                }
                ],
			style_as_list_view=True,
            sort_action='native',
            row_selectable="multi",
			fixed_rows={
				'headers': True, 'data': 0},
			style_cell={'width': '150px',
						'textAlign': 'left'},
			style_header={
				'backgroundColor': 'white',
				'fontWeight': 'bold',
				'textAlign': 'center'},
			style_data_conditional=[
			{
				'if': {'row_index': 'odd'},
				'backgroundColor': 'rgb(230, 230, 230)'
					},
			{
				"if": {"column_id": 'Net Sales Variance',
				'filter_query': '{Net Sales Variance} > 0'
					},
				"backgroundColor": "#D1FFBE",
					},		
			{
				"if": {"column_id": 'Net Sales Variance',
				'filter_query': '{Net Sales Variance} < 0'
					},
				"backgroundColor": "#FFBEBE",
					},	
			{
				"if": {"column_id": 'Guest Count Variance',
				'filter_query': '{Guest Count Variance} > 0'
					},
				"backgroundColor": "#D1FFBE",
					},		
			{
				"if": {"column_id": 'Guest Count Variance',
				'filter_query': '{Guest Count Variance} < 0'
					},
				"backgroundColor": "#FFBEBE",
					},	
			{
				"if": {"column_id": 'Location',
				'filter_query': '{Location} eq "Core Stores"'
					},
				"backgroundColor": "#FFFAAA",
				'fontWeight': 'bold',
					},	
				]
			),
			], className='five columns'),
		], className='row')
	])

@app.callback(
    Output('graph', "children"),
    [Input('table', "derived_virtual_data"),
     Input('table', "derived_virtual_selected_rows")])
     
def update_graphs(rows, derived_virtual_selected_rows):
	
	if derived_virtual_selected_rows is None:
		derived_virtual_selected_rows = []

	dff = data if rows is None else pd.DataFrame(rows)

	return [
		dcc.Graph(
			id=column,
			figure={
				"data": [
                    {
                        "x": dff["Location"],
                        "y": dff["Net Sales Variance"],
                        "type": "bar",
                        "name": "Net Sales",
                        "marker": {"color": 
							['#EC2D2D' if i in 
							derived_virtual_selected_rows 
							else '#FB9898' for i in range(len(dff))]},
                    },
                    {
                        "x": dff["Location"],
                        "y": dff["Guest Count Variance"],
                        "type": "bar",
                        "name": "Guest Count",
                        "marker": {"color": 
							['#3C2DEC' if i in 
							derived_virtual_selected_rows 
							else '#9D98FB' for i in range(len(dff))]},
                    }
                ],
                "layout": {
                    "xaxis": {"automargin": True},
                    "yaxis": {
                        "automargin": True,
                        "tickformat": ".0%",
                        "hoverformat": ".1%",
                    },
                    "legend": {
						"orientation": "h",
						"y": 1.15
                    },
                    "height": 500,
                    "width": 800,
                    "margin": {"t": 30, "l": 80, "r": 80, "b":30},
                },
            },
        )

        for column in ["Location"] 
		if column in dff
    ]

if __name__ == ' __main__':
    app.run_server(debug=True)

```

Am I doing something wrong?

---

<div class="post-metadata">

**Author:** ![mbkupfer](https://sea2.discourse-cdn.com/flex024/user_avatar/community.plotly.com/mbkupfer/32/4334_2.png) [@mbkupfer](https://community.plotly.com/u/mbkupfer)\
**Post date:** [November 2, 2019, 9:17pm UTC](https://community.plotly.com/t/deploying-dash-h10-error/30814/2 "2019-11-02T21:17:42Z")

</div>

The error logs you are sharing don’t look complete. You should search for a possible python runtimeerror in the logs. For example, a import error happens when you don’t update the requirements.txt file.

---

<div class="post-metadata">

**Author:** ![vspadotto](https://sea2.discourse-cdn.com/flex024/user_avatar/community.plotly.com/vspadotto/32/7727_2.png) [@vspadotto](https://community.plotly.com/u/vspadotto)\
**Post date:** [November 2, 2019, 9:55pm UTC](https://community.plotly.com/t/deploying-dash-h10-error/30814/3 "2019-11-02T21:55:48Z")

</div>

I have the requirements file and Procfile. Is there any chance that the problem is with the assets folder where I have two files that the code should read?

![Capture](https://us1.discourse-cdn.com/flex024/uploads/plot/original/2X/d/d36b21a07d75b67aef8825f9f5f5ef235009e528.png)

(venv) C:\Users\vspad\Desktop\my\_dash\_app\>heroku logs --tail  
2019-11-02T19:12:11.999098+00:00 app[web.1]: [2019-11-02 19:12:11 +0000] [10] [INFO] Booting worker with pid: 10  
2019-11-02T19:12:12.006157+00:00 app[web.1]: [2019-11-02 19:12:12 +0000] [11] [INFO] Booting worker with pid: 11  
2019-11-02T19:12:12.934189+00:00 heroku[web.1]: State changed from starting to up  
2019-11-02T19:12:14.273318+00:00 app[web.1]: [2019-11-02 19:12:14 +0000] [10] [ERROR] Exception in worker process  
2019-11-02T19:12:14.273346+00:00 app[web.1]: Traceback (most recent call last):  
2019-11-02T19:12:14.27335+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 583, in spawn\_worker  
2019-11-02T19:12:14.273352+00:00 app[web.1]: worker.init\_process()  
2019-11-02T19:12:14.273354+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/workers/base.py”, line 129, in init\_process  
2019-11-02T19:12:14.273356+00:00 app[web.1]: self.load\_wsgi()  
2019-11-02T19:12:14.273358+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/workers/base.py”, line 138, in load\_wsgi  
2019-11-02T19:12:14.27336+00:00 app[web.1]: self.wsgi = self.app.wsgi()  
2019-11-02T19:12:14.273362+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/base.py”, line 67, in wsgi  
2019-11-02T19:12:14.273364+00:00 app[web.1]: self.callable = self.load()  
2019-11-02T19:12:14.273366+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py”, line 52, in load  
2019-11-02T19:12:14.273368+00:00 app[web.1]: return self.load\_wsgiapp()  
2019-11-02T19:12:14.27337+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py”, line 41, in load\_wsgiapp  
2019-11-02T19:12:14.273372+00:00 app[web.1]: return util.import\_app(self.app\_uri)  
2019-11-02T19:12:14.273374+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/util.py”, line 350, in import\_app  
2019-11-02T19:12:14.273376+00:00 app[web.1]: **import** (module)  
2019-11-02T19:12:14.273378+00:00 app[web.1]: File “/app/app1.py”, line 11, in   
2019-11-02T19:12:14.27338+00:00 app[web.1]: sales = pd.read\_excel(‘assets/sales.xls’)  
2019-11-02T19:12:14.273383+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/util/\_decorators.py”, line 208, in wrapper  
2019-11-02T19:12:14.273385+00:00 app[web.1]: return func(\*args, \*\*kwargs)  
2019-11-02T19:12:14.273387+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/io/excel/\_base.py”, line 310, in read\_excel  
2019-11-02T19:12:14.273389+00:00 app[web.1]: io = ExcelFile(io, engine=engine)  
2019-11-02T19:12:14.273391+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/io/excel/\_base.py”, line 819, in **init**  
2019-11-02T19:12:14.273394+00:00 app[web.1]: self.\_reader = self.\_enginesengine  
2019-11-02T19:12:14.273396+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/io/excel/\_xlrd.py”, line 20, in **init**  
2019-11-02T19:12:14.273397+00:00 app[web.1]: import\_optional\_dependency(“xlrd”, extra=err\_msg)  
2019-11-02T19:12:14.2734+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/compat/\_optional.py”, line 93, in import\_optional\_dependency  
2019-11-02T19:12:14.273402+00:00 app[web.1]: raise ImportError(message.format(name=name, extra=extra)) from None  
2019-11-02T19:12:14.273486+00:00 app[web.1]: ImportError: Missing optional dependency ‘xlrd’. Install xlrd \>= 1.0.0 for Excel support Use pip or conda to install xlrd.  
2019-11-02T19:12:14.275344+00:00 app[web.1]: [2019-11-02 19:12:14 +0000] [10] [INFO] Worker exiting (pid: 10)  
2019-11-02T19:12:14.794867+00:00 app[web.1]: [2019-11-02 19:12:14 +0000] [11] [ERROR] Exception in worker process  
2019-11-02T19:12:14.794875+00:00 app[web.1]: Traceback (most recent call last):  
2019-11-02T19:12:14.794882+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 583, in spawn\_worker  
2019-11-02T19:12:14.794885+00:00 app[web.1]: worker.init\_process()  
2019-11-02T19:12:14.794887+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/workers/base.py”, line 129, in init\_process  
2019-11-02T19:12:14.794889+00:00 app[web.1]: self.load\_wsgi()  
2019-11-02T19:12:14.794891+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/workers/base.py”, line 138, in load\_wsgi  
2019-11-02T19:12:14.794893+00:00 app[web.1]: self.wsgi = self.app.wsgi()  
2019-11-02T19:12:14.794895+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/base.py”, line 67, in wsgi  
2019-11-02T19:12:14.794897+00:00 app[web.1]: self.callable = self.load()  
2019-11-02T19:12:14.794899+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py”, line 52, in load  
2019-11-02T19:12:14.794901+00:00 app[web.1]: return self.load\_wsgiapp()  
2019-11-02T19:12:14.794903+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py”, line 41, in load\_wsgiapp  
2019-11-02T19:12:14.794905+00:00 app[web.1]: return util.import\_app(self.app\_uri)  
2019-11-02T19:12:14.794906+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/util.py”, line 350, in import\_app  
2019-11-02T19:12:14.794908+00:00 app[web.1]: **import** (module)  
2019-11-02T19:12:14.79491+00:00 app[web.1]: File “/app/app1.py”, line 11, in   
2019-11-02T19:12:14.794912+00:00 app[web.1]: sales = pd.read\_excel(‘assets/sales.xls’)  
2019-11-02T19:12:14.794914+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/util/\_decorators.py”, line 208, in wrapper  
2019-11-02T19:12:14.794915+00:00 app[web.1]: return func(\*args, \*\*kwargs)  
2019-11-02T19:12:14.794917+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/io/excel/\_base.py”, line 310, in read\_excel  
2019-11-02T19:12:14.794919+00:00 app[web.1]: io = ExcelFile(io, engine=engine)  
2019-11-02T19:12:14.79492+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/io/excel/\_base.py”, line 819, in **init**  
2019-11-02T19:12:14.794923+00:00 app[web.1]: self.\_reader = self.\_enginesengine  
2019-11-02T19:12:14.794925+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/io/excel/\_xlrd.py”, line 20, in **init**  
2019-11-02T19:12:14.794927+00:00 app[web.1]: import\_optional\_dependency(“xlrd”, extra=err\_msg)  
2019-11-02T19:12:14.794932+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/pandas/compat/\_optional.py”, line 93, in import\_optional\_dependency  
2019-11-02T19:12:14.794933+00:00 app[web.1]: raise ImportError(message.format(name=name, extra=extra)) from None  
2019-11-02T19:12:14.79494+00:00 app[web.1]: ImportError: Missing optional dependency ‘xlrd’. Install xlrd \>= 1.0.0 for Excel support Use pip or conda to install xlrd.  
2019-11-02T19:12:14.796275+00:00 app[web.1]: [2019-11-02 19:12:14 +0000] [11] [INFO] Worker exiting (pid: 11)  
2019-11-02T19:12:15.021682+00:00 app[web.1]: Traceback (most recent call last):  
2019-11-02T19:12:15.021687+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 210, in run  
2019-11-02T19:12:15.022123+00:00 app[web.1]: self.sleep()  
2019-11-02T19:12:15.022127+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 360, in sleep  
2019-11-02T19:12:15.022344+00:00 app[web.1]: ready = select.select([self.PIPE[0]], [], [], 1.0)  
2019-11-02T19:12:15.022353+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 245, in handle\_chld  
2019-11-02T19:12:15.022567+00:00 app[web.1]: self.reap\_workers()  
2019-11-02T19:12:15.022571+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 525, in reap\_workers  
2019-11-02T19:12:15.022831+00:00 app[web.1]: raise HaltServer(reason, self.WORKER\_BOOT\_ERROR)  
2019-11-02T19:12:15.022927+00:00 app[web.1]: gunicorn.errors.HaltServer: \<HaltServer ‘Worker failed to boot.’ 3\>  
2019-11-02T19:12:15.022934+00:00 app[web.1]:  
2019-11-02T19:12:15.022937+00:00 app[web.1]: During handling of the above exception, another exception occurred:  
2019-11-02T19:12:15.022938+00:00 app[web.1]:  
2019-11-02T19:12:15.022941+00:00 app[web.1]: Traceback (most recent call last):  
2019-11-02T19:12:15.022943+00:00 app[web.1]: File “/app/.heroku/python/bin/gunicorn”, line 11, in   
2019-11-02T19:12:15.023071+00:00 app[web.1]: sys.exit(run())  
2019-11-02T19:12:15.023079+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py”, line 61, in run  
2019-11-02T19:12:15.023249+00:00 app[web.1]: WSGIApplication("%(prog)s [OPTIONS] [APP\_MODULE]").run()  
2019-11-02T19:12:15.023297+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/base.py”, line 223, in run  
2019-11-02T19:12:15.023537+00:00 app[web.1]: super(Application, self).run()  
2019-11-02T19:12:15.023544+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/app/base.py”, line 72, in run  
2019-11-02T19:12:15.023712+00:00 app[web.1]: Arbiter(self).run()  
2019-11-02T19:12:15.023719+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 232, in run  
2019-11-02T19:12:15.023924+00:00 app[web.1]: self.halt(reason=inst.reason, exit\_status=inst.exit\_status)  
2019-11-02T19:12:15.023931+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 345, in halt  
2019-11-02T19:12:15.024166+00:00 app[web.1]: self.stop()  
2019-11-02T19:12:15.024169+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 393, in stop  
2019-11-02T19:12:15.024413+00:00 app[web.1]: time.sleep(0.1)  
2019-11-02T19:12:15.02446+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 245, in handle\_chld  
2019-11-02T19:12:15.024663+00:00 app[web.1]: self.reap\_workers()  
2019-11-02T19:12:15.02467+00:00 app[web.1]: File “/app/.heroku/python/lib/python3.6/site-packages/gunicorn/arbiter.py”, line 525, in reap\_workers  
2019-11-02T19:12:15.024955+00:00 app[web.1]: raise HaltServer(reason, self.WORKER\_BOOT\_ERROR)  
2019-11-02T19:12:15.024959+00:00 app[web.1]: gunicorn.errors.HaltServer: \<HaltServer ‘Worker failed to boot.’ 3\>  
2019-11-02T19:12:15.108427+00:00 heroku[web.1]: Process exited with status 1  
2019-11-02T19:12:15.274494+00:00 heroku[web.1]: State changed from up to crashed  
2019-11-02T19:13:35.901538+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/" [host=vit-dash-app-8486.herokuapp.com](http://host=vit-dash-app-8486.herokuapp.com) request\_id=be5a0b67-3d5b-4ed2-b3f5-98f42ff354a8 fwd=“64.180.1.156” dyno= connect= service= status=503 bytes= protocol=https  
2019-11-02T19:13:37.749622+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/favicon.ico" [host=vit-dash-app-8486.herokuapp.com](http://host=vit-dash-app-8486.herokuapp.com) request\_id=46b75a76-175b-4055-b877-0bc69b1e68b0 fwd=“64.180.1.156” dyno= connect= service= status=503 bytes= protocol=https  
2019-11-02T19:22:56.130801+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/" [host=vit-dash-app-8486.herokuapp.com](http://host=vit-dash-app-8486.herokuapp.com) request\_id=2105f4d3-483c-423a-ad22-e14c937bcb67 fwd=“64.180.1.156” dyno= connect= service= status=503 bytes= protocol=http  
2019-11-02T19:22:57.287903+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/favicon.ico" [host=vit-dash-app-8486.herokuapp.com](http://host=vit-dash-app-8486.herokuapp.com) request\_id=d30ecfd5-4f74-4218-a82e-70a5f4d73852 fwd=“64.180.1.156” dyno= connect= service= status=503 bytes= protocol=http

---

<div class="post-metadata">

**Author:** ![tcbegley](https://avatars.discourse-cdn.com/v4/letter/t/46a35a/32.png) [@tcbegley](https://community.plotly.com/u/tcbegley)\
**Post date:** [November 2, 2019, 10:40pm UTC](https://community.plotly.com/t/deploying-dash-h10-error/30814/4 "2019-11-02T22:40:57Z")

</div>

The problem appears to be here

```auto
ImportError: Missing optional dependency ‘xlrd’. Install xlrd >= 1.0.0 for Excel support Use pip or conda to install xlrd.

```

You can probably fix it by adding `xlrd` to your `requirements.txt`.

---

<div class="post-metadata">

**Author:** ![vspadotto](https://sea2.discourse-cdn.com/flex024/user_avatar/community.plotly.com/vspadotto/32/7727_2.png) [@vspadotto](https://community.plotly.com/u/vspadotto)\
**Post date:** [November 3, 2019, 12:22am UTC](https://community.plotly.com/t/deploying-dash-h10-error/30814/6 "2019-11-03T00:22:32Z")

</div>

It worked, the issue was with xlrd.  
[https://vit-dash-first.herokuapp.com/](https://vit-dash-first.herokuapp.com/)

Thanks!