Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/3aab993f-d942-44d9-9dd8-f8b121172f7f/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e0343da5-b712-4e8b-9ae2-b348138eea58",
      "cw-f02fdaed-5c62-4458-b960-e0338aaa7867"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bafdcdbe-5a34-4b82-8f85-8e66d793ab40",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/3aab993f-d942-44d9-9dd8-f8b121172f7f/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f02fdaed-5c62-4458-b960-e0338aaa7867",
    "thumbnailNavigationPosition": "far-bottom"
  }
}