title: Cannot access CraftCMS 3 plugin store from local windows environment/MAMP
body: <p>I have installed craft CMS 3 via composer, running on MAMP (windows 10) and successfully created a few templates and entries. </p>
  
  <p>However, When I try to access the plugin store I see the following error on the page: "The Plugin Store is not available, please try again later."
  and in the console I see the two internal server errors copied below:</p>
  
  <p>I was able to install the contact form plugin via composer. but not for other plugins (e.g. sprout forms)</p>
  
  <p>I am also seeing an 'unknown error' message at the dashboard: jquery.js:9566 POST <a href="http://localhost:81/index.php?p=admin/actions/dashboard/get-feed-items" rel="nofollow noreferrer">http://localhost:81/index.php?p=admin/actions/dashboard/get-feed-items</a> 500 (Internal Server Error)</p>
  
  <p>Has anyone else seen this issue?</p>
  
  <p>Console error messages when trying to access the plugin store:</p>
  
  <pre><code>    axios.js:853 GET http://localhost:81/index.php?p=admin/actions/plugin-store/plugin-store-data 500 (Internal Server Error)
      (anonymous) @ axios.js:853
      e.exports @ axios.js:687
      e.exports @ axios.js:1367
      Promise.then (async)
      a.request @ axios.js:525
      a.(anonymous function) @ axios.js:535
      (anonymous) @ axios.js:439
      Q @ main.js:1
      (anonymous) @ main.js:1
      getPluginStoreData @ main.js:1
      (anonymous) @ vuex.js:710
      l.dispatch @ vuex.js:432
      dispatch @ vuex.js:338
      created @ main.js:1
      yt @ vue.min.js:6
      pn._init @ vue.min.js:6
      pn @ vue.min.js:6
      (anonymous) @ main.js:1
      l @ jquery.js:3583
      c @ jquery.js:3651
      setTimeout (async)
      (anonymous) @ jquery.js:3689
      c @ jquery.js:3317
      fireWith @ jquery.js:3447
      fire @ jquery.js:3455
      c @ jquery.js:3317
      fireWith @ jquery.js:3447
      ready @ jquery.js:3920
      B @ jquery.js:3930
      axios.js:853 
  
      GET http://localhost:81/index.php?p=admin/actions/plugin-store/craft-data 500 (Internal Server Error)
      (anonymous) @ axios.js:853
      e.exports @ axios.js:687
      e.exports @ axios.js:1367
      Promise.then (async)
      a.request @ axios.js:525
      a.(anonymous function) @ axios.js:535
      (anonymous) @ axios.js:439
      W @ main.js:1
      (anonymous) @ main.js:1
      getCraftData @ main.js:1
      (anonymous) @ vuex.js:710
      l.dispatch @ vuex.js:432
      dispatch @ vuex.js:338
      created @ main.js:1
      yt @ vue.min.js:6
      pn._init @ vue.min.js:6
      pn @ vue.min.js:6
      (anonymous) @ main.js:1
      l @ jquery.js:3583
      c @ jquery.js:3651
      setTimeout (async)
      (anonymous) @ jquery.js:3689
      c @ jquery.js:3317
      fireWith @ jquery.js:3447
      fire @ jquery.js:3455
      c @ jquery.js:3317
      fireWith @ jquery.js:3447
      ready @ jquery.js:3920
      B @ jquery.js:3930
  </code></pre>