Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/statelibrarypa/iiif/cf51aeef-78fb-43bb-b4fa-c7d3427b2fe0/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7e328659-7b66-40b2-988f-b90395328ab1",
      "cw-afe64f4b-b115-4c2b-bb59-170d1add0c36"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ca9cf365-6821-4a51-86f4-47eee137e05b",
    "manifestId": "https://iiif.quartexcollections.com/statelibrarypa/iiif/cf51aeef-78fb-43bb-b4fa-c7d3427b2fe0/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-afe64f4b-b115-4c2b-bb59-170d1add0c36",
    "thumbnailNavigationPosition": "far-bottom"
  }
}