Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/a7d95475-2a38-4501-b768-21b1927adefb/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c2354224-0494-41bf-b7b6-337286e7370d",
      "cw-7cf66ffd-430d-4d4d-b149-6aee3cad9a27"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d21ac1b7-ab11-4d0a-bb84-359d4f6a5f71",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/a7d95475-2a38-4501-b768-21b1927adefb/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7cf66ffd-430d-4d4d-b149-6aee3cad9a27",
    "thumbnailNavigationPosition": "far-bottom"
  }
}