Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b066-f09/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-82d8656c-32e1-47ec-adbb-914a4da81442",
      "cw-7bc6c337-b206-42dd-a977-1e365c86bac8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3fcfb4a3-02df-4aae-904c-564f1f2ad703",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b066-f09/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7bc6c337-b206-42dd-a977-1e365c86bac8",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b066-f09/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}