Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b081-f03/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-354a5318-fd31-4175-984b-c243437dbcdd",
      "cw-521640c5-b496-4c2e-a778-6cda7ed8caca"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a2622d2e-e14f-45f6-b255-76b1467058f3",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b081-f03/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-521640c5-b496-4c2e-a778-6cda7ed8caca",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b081-f03/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}