Pipeline Error

Validation error: Incorrect template "{% set json = d.content | from_json %} {%set activities = json['trackResponse']['shipment'][0]['package'][0]['activity']%} {%set ttime = activities[0]['time']%} {% set tracking_time = ttime[0:2]+":"+ttime[2:4]+":"+ttime[-2:] %} {{tracking_time}}". UndefinedError: 'dict object' has no attribute 'package'

This is the error I am getting. Any ideas on how to fix it?