Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b112-f01-15/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-59f78fc8-24f1-4a44-ab61-4614055b2509",
      "cw-3475c691-e0c5-42a1-859e-5f8ff3a4b7ae"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fb6524f7-a523-42ce-9e4d-96856e25e9e5",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b112-f01-15/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3475c691-e0c5-42a1-859e-5f8ff3a4b7ae",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b112-f01-15/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}