Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/50e1153b-beda-40a5-876d-ea46673d3854/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d261115c-dbd6-42c3-82d3-90c688e9c145",
      "cw-e11016c6-88f1-4204-9665-8ba05f17f4b5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d39855ee-32e5-498c-a2ca-7e723e2f5dd5",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/50e1153b-beda-40a5-876d-ea46673d3854/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e11016c6-88f1-4204-9665-8ba05f17f4b5",
    "thumbnailNavigationPosition": "far-bottom"
  }
}