Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b018-f13/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-18e2ea42-878e-4b69-9df1-4acb341a869e",
      "cw-cf2f54a5-8b9b-438f-af7a-6b3751074869"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-76e37350-88eb-4fa3-acbc-a3805ce09506",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b018-f13/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cf2f54a5-8b9b-438f-af7a-6b3751074869",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b018-f13/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}