updated variable name

backend/services/stripeService.js

@@ -200,7 +200,7 @@ class StripeService {
 
       // Send notification
       await emailServices.payment.sendAccountDisconnectedEmail(user.email, {
-        ownerName: user.firstName || user.name,
+        ownerName: user.firstName || user.lastName,
         hasPendingPayouts: true, // We're in a transfer, so there's at least one
         pendingPayoutCount: 1,
       });