Address review

js/views/conversation_view.js

@@ -346,13 +346,18 @@
         );
 
         const allMembers = await Promise.all(
-          allPubKeys.map(async pubKey => ({
-            id: pubKey,
-            authorPhoneNumber: pubKey,
-            authorProfileName: await ConversationController.get(
-              pubKey
-            ).getProfileName(),
-          }))
+          allPubKeys.map(async pubKey => {
+            const conv = ConversationController.get(pubKey);
+            let profileName = 'Anonymous';
+            if (conv) {
+              profileName = await conv.getProfileName();
+            }
+            return {
+              id: pubKey,
+              authorPhoneNumber: pubKey,
+              authorProfileName: profileName,
+            };
+          })
         );
         window.lokiPublicChatAPI.setListOfMembers(allMembers);
       };