Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/statelibrarypa/iiif/f21a4ae3-db6d-455c-a830-43fab2769e63/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ebfd8fef-d580-4924-82a3-05fe394cb741",
      "cw-6f5d7976-2a87-4695-92e0-6a3cade22ca7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ab5b80b5-dfea-44ad-bad8-f5bf29f740ec",
    "manifestId": "https://iiif.quartexcollections.com/statelibrarypa/iiif/f21a4ae3-db6d-455c-a830-43fab2769e63/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6f5d7976-2a87-4695-92e0-6a3cade22ca7",
    "thumbnailNavigationPosition": "far-bottom"
  }
}