try to fix logged error:

Subscription update successful 0c8nsU_N6RQPMalxp5ep_w . Total subscriptions: 2
TypeError: Cannot read properties of null (reading 'pushSubscription')

pages/api/notify.ts

@@ -152,7 +152,7 @@ export const sendPush = async (id, title, message, actions) => {
         where: { id }
     })
 
-    if (Array.isArray(publisher.pushSubscription) && publisher.pushSubscription.length) {
+    if (publisher.pushSubscription && Array.isArray(publisher.pushSubscription) && publisher.pushSubscription.length) {
         for (const subscription of publisher.pushSubscription) {
             await webPush
                 .sendNotification(