TypeError: Cannot read property 'attachments' of undefined

[sentry]

Sentry Issue: DISPUTE-TOOLS-2X

TypeError: Cannot read property 'attachments' of undefined
  File "/usr/src/app/models/DisputeRenderer.js", line 111, in newClass.buildZip
    [..._renderer.attachments, ...dispute.attachments],
  ?, in null.<anonymous>

TypeError: Cannot read property 'attachments' of undefined