fix subscription

enrollments-events/app/events/enroll.py

@@ -64,8 +64,8 @@ def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
             'user': user,
             'order_id': new_image['id'],
         },
-    ) as fp:
-        result = fp.process()
+    ) as batch:
+        result = batch.process()
         logger.debug('Processed courses', result=result)
 
     return order_layer.update_item(