Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/8d103831-b8f6-42e7-aca5-b23cc8803c04/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-36892be0-c562-4855-960f-974225851bd4",
      "cw-0daf5f2e-2399-49db-aa99-41fe6d90ee32"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-63db4c82-b9b7-42d8-9419-c99d537de4c9",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/8d103831-b8f6-42e7-aca5-b23cc8803c04/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0daf5f2e-2399-49db-aa99-41fe6d90ee32",
    "thumbnailNavigationPosition": "far-bottom"
  }
}