Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b101-f01-12/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8e45a80d-80d8-4ae6-86b9-a6b2824aff4c",
      "cw-0d2dd094-3ad0-43d2-a8c5-5b6093d7ee2d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a26673bf-4801-4b64-bd98-85cf42049fdc",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b101-f01-12/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0d2dd094-3ad0-43d2-a8c5-5b6093d7ee2d",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b101-f01-12/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}