Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b074-f06-01/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-56a08689-a98c-41ec-bcb9-0d1d29adc8d2",
      "cw-2d913ecd-5efa-4869-9e97-5e9b8feede1d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-94266e7e-9fef-4da0-9976-694baa9e23df",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b074-f06-01/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2d913ecd-5efa-4869-9e97-5e9b8feede1d",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b074-f06-01/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}