title: After deploying getting internal server error on heroku
body: <p>Build successfully but still getting internal server error.</p>
  
  <p>Please help to fix this, build message is given below:-</p>
  
  <pre><code>-----&gt; Node.js app detected
  -----&gt; Creating runtime environment        
  NPM_CONFIG_LOGLEVEL=error       
  NODE_VERBOSE=false       
  NODE_ENV=production       
  NODE_MODULES_CACHE=true
  -----&gt; Installing binaries       
  engines.node (package.json):  10.6.0       
  engines.npm (package.json):   unspecified (use default)        
  Resolving node version 10.6.0...       
  Downloading and installing node 10.6.0...       
  Using default npm version: 6.1.0
  -----&gt; Restoring cache       
  Loading 2 from cacheDirectories (default):       
  - node_modules       
  - bower_components (not cached - skipping)
  -----&gt; Building dependencies       
  Installing node modules (package.json + package-lock)       
  audited 492 packages in 2.222s       
  found 0 vulnerabilities -----&gt; Caching build       
  Clearing previous node cache       
  Saving 2 cacheDirectories (default):       
  - node_modules       
  - bower_components (nothing to cache)
  -----&gt; Pruning devDependencies       
  removed 66 packages and audited 355 packages in 2.11s       
  found 0 vulnerabilities 
  -----&gt; Build succeeded!
  -----&gt; Discovering process types       
  Procfile declares types     -&gt; (none)       
  Default types for buildpack -&gt; web
  -----&gt; Compressing...       
  Done: 22.6M
  -----&gt; Launching...       
  Released v14       
  https://young-forest-74580.herokuapp.com/ deployed to Heroku
  </code></pre>