Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b111-f08-08/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b863b9a-3bfd-426a-b7ba-da968a87b0b4",
      "cw-5ebb35d9-3869-4dbb-899d-1b6cca63d154"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7a91cc9c-c9da-4030-82de-60b9b0db8211",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b111-f08-08/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5ebb35d9-3869-4dbb-899d-1b6cca63d154",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b111-f08-08/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}