updated to v5

src/pages/index.js

@@ -1,5 +1,5 @@
 import React from 'react'
-import Helmet from 'react-helmet'
+import { Helmet } from 'react-helmet'
 
 import Layout from '../components/layout'
 // import Lightbox from 'react-images'
@@ -39,11 +39,11 @@ class HomeIndex extends React.Component {
         super();
 
         this.state = {
-            lightboxIsOpen: false,
-            currentImage: 0,
-        };
-	
-	    this.handleSubmit = this.handleSubmit.bind(this);
+            invalid: false,
+            displayErrors: false,
+            res: null
+        }
+        this.handleSubmit = this.handleSubmit.bind(this)
         this.closeLightbox = this.closeLightbox.bind(this);
         this.gotoNext = this.gotoNext.bind(this);
         this.gotoPrevious = this.gotoPrevious.bind(this);