fix: check if its a cs link before checking node

server/routers/contentstack/loyaltyPage/utils.ts

@@ -84,16 +84,18 @@ export function makeButtonObject(button: any) {
 
   const isContenstackLink =
     button?.is_contentstack_link || button.linkConnection?.edges?.length
-  const linkConnnectionNode = button.linkConnection.edges[0].node
+  const linkConnnectionNode = isContenstackLink
+    ? button.linkConnection.edges[0]?.node
+    : null
 
   return {
     openInNewTab: button?.open_in_new_tab,
     title:
       button.cta_text ||
-      (isContenstackLink
+      (linkConnnectionNode
         ? linkConnnectionNode.title
         : button.external_link.title),
-    href: isContenstackLink
+    href: linkConnnectionNode
       ? linkConnnectionNode.web?.original_url ||
         removeMultipleSlashes(
           `/${linkConnnectionNode.system.locale}/${linkConnnectionNode.url}`