Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b033-f04/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f2953659-6ee3-444e-883f-58373e86ce30",
      "cw-9ced0845-64ba-45d1-8566-9150e905bbdc"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-060ee931-9bd0-4ddf-ba28-5dd07f778f06",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b033-f04/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9ced0845-64ba-45d1-8566-9150e905bbdc",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b033-f04/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}