Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/b7b3d8d6-627c-4e4c-8e25-1c2f0dfde013/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-20849153-e890-49aa-b408-1cff6a44a267",
      "cw-59c8b1be-1766-45e1-9a3a-48b9f400c299"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c0bd98eb-4aab-48f2-ae14-def2255cf08a",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/b7b3d8d6-627c-4e4c-8e25-1c2f0dfde013/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-59c8b1be-1766-45e1-9a3a-48b9f400c299",
    "thumbnailNavigationPosition": "far-bottom"
  }
}