Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b069-f07/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9214330a-3dc2-4e1b-b5d1-df38b1ba3158",
      "cw-1d1696e1-51d6-44fd-945c-08ac3e0249d3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-647ae8ea-ecc3-4915-b564-7539aa8ecfa5",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b069-f07/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1d1696e1-51d6-44fd-945c-08ac3e0249d3",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b069-f07/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}