validation added

Signed-off-by: mufaddal motiwala <mufaddalmm.52@gmail.com>

plugins/newrelic-dashboard/src/Router.tsx

@@ -22,7 +22,7 @@ import { useEntity } from '@backstage/plugin-catalog-react';
 import { NEWRELIC_GUID } from './constants';
 
 export const isNewRelicDashboardAvailable = (entity: Entity) =>
-  Boolean(entity.metadata.annotations?.[NEWRELIC_GUID]);
+  Boolean(entity?.metadata?.annotations?.[NEWRELIC_GUID]);
 
 type Props = {
   /** @deprecated The entity is now grabbed from context instead */

plugins/newrelic-dashboard/src/hooks/index.ts

@@ -20,8 +20,8 @@ import { NEWRELIC_GUID } from '../constants';
 export function useNewRelicDashboardEntity() {
   const { entity } = useEntity();
   const integrationKey: string | undefined =
-    entity.metadata.annotations?.[NEWRELIC_GUID];
-  const name: string | undefined = entity.metadata.name;
+    entity?.metadata?.annotations?.[NEWRELIC_GUID];
+  const name: string | undefined = entity?.metadata?.name;
 
   return { integrationKey, name };
 }