Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/84210cbf-db5e-4d2d-be76-eec59d35321c/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b09b025a-d856-43db-9e81-f84ce28961a2",
      "cw-d5e4e063-f344-4da5-8d49-8d6a133ed741"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-988da6dd-31b0-489f-9f24-8a809b507b5e",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/84210cbf-db5e-4d2d-be76-eec59d35321c/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d5e4e063-f344-4da5-8d49-8d6a133ed741",
    "thumbnailNavigationPosition": "far-bottom"
  }
}