Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/8e683b93-eab2-4823-b27a-ac02fda9a9f9/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a60661d9-dc10-4683-84de-e99159e462d4",
      "cw-0ec17a0e-2333-489c-856f-a3cce785d9ab"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d9f53e1a-57e2-468c-8e5a-0da76c04a377",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/8e683b93-eab2-4823-b27a-ac02fda9a9f9/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0ec17a0e-2333-489c-856f-a3cce785d9ab",
    "thumbnailNavigationPosition": "far-bottom"
  }
}