Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b112-f04-08/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a4322ad5-9bd8-4c33-8f65-7c822e0d21e4",
      "cw-a9639e9d-a299-4de9-96c0-bd5b92103b2c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-79edeb13-1587-484a-8873-b01299aa6076",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b112-f04-08/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a9639e9d-a299-4de9-96c0-bd5b92103b2c",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b112-f04-08/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}