I use cloud9 to deploy the sample to heroku,

Here is the link I follow to deploy. Everything looks good.
https://docs.reactioncommerce.com/reaction-docs/master/deploying-reaction-using-heroku

But after git push heroku master, there is nothing on the page. I go to inspect and get the following message

Error invoking SubsManager.subscribe("Inventory"): Subscription 'Inventory' not found
be55425….js?meteor_js_resource=true:229 BlazeLayout warning: unknown template "coreLayout"

Anyone can tell me where is the problem?