Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/aaf95fba-491c-4281-8c79-80ab0356b1c7/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2860fb4e-6f6c-47df-acf5-85bb91d5c28d",
      "cw-29ce8949-6637-4035-9917-09723538119a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-64992390-357c-4f52-af9e-d01cc21c5602",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/aaf95fba-491c-4281-8c79-80ab0356b1c7/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-29ce8949-6637-4035-9917-09723538119a",
    "thumbnailNavigationPosition": "far-bottom"
  }
}