Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/8b721756-9945-404c-8f14-3adce677ca83/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-48e39661-e962-4eab-88e9-10871f977e9f",
      "cw-8510df1a-f307-4c29-a121-1ba22ba1712b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3d2e8a99-f3d6-4e22-8ba8-5cc33090e39c",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/8b721756-9945-404c-8f14-3adce677ca83/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8510df1a-f307-4c29-a121-1ba22ba1712b",
    "thumbnailNavigationPosition": "far-bottom"
  }
}