Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b069-f01/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4d77a7c8-829f-4275-9749-6ac5a5ed2392",
      "cw-22c82b9a-4282-4021-a826-a8e8d6d68e55"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-87b380c9-033f-4ff3-ba8b-b2247d16523f",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b069-f01/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-22c82b9a-4282-4021-a826-a8e8d6d68e55",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b069-f01/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}