handle null talk

Author: marcoacierno

frontend/src/pages/keynotes/[slug]/index.tsx

@@ -20,9 +20,7 @@ const KeynotePage = () => {
   const {
     data: {
       conference: {
-        talk: {
-          slidoUrl,
-        },
+        talk,
         keynote: {
           title,
           description,
@@ -42,6 +40,8 @@ const KeynotePage = () => {
     },
   });
 
+  const { slidoUrl } = talk || {};
+
   const speakersName = speakers.map((speaker) => speaker.fullName).join(" & ");
 
   return (