Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/4674a9e2-f2a8-4c35-95a0-37c89be5a7c2/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5e5bb532-f453-43d9-9889-b5345765ef45",
      "cw-590a631f-e85a-4b0e-a21b-deb2edcd8f4e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5509ef2f-f780-4a4a-8529-2a96d08222c0",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/4674a9e2-f2a8-4c35-95a0-37c89be5a7c2/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-590a631f-e85a-4b0e-a21b-deb2edcd8f4e",
    "thumbnailNavigationPosition": "far-bottom"
  }
}