Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/a899230b-0631-4347-a11e-583312afc551/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fb168ac0-b5c1-4ee7-8d48-09e57c4b5c9a",
      "cw-33a487ef-c5b5-42d9-8e3f-8fce999675fa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9084475d-d8c0-485f-a8a2-6db185438b21",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/a899230b-0631-4347-a11e-583312afc551/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-33a487ef-c5b5-42d9-8e3f-8fce999675fa",
    "thumbnailNavigationPosition": "far-bottom"
  }
}