Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b111-f08-18/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e1939eec-a72f-4873-9e2d-a5c057800c21",
      "cw-75d83bef-ca52-4185-8f1a-ee568a78df0d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-58fc75af-44cb-496e-9df8-6cd1a2810455",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b111-f08-18/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-75d83bef-ca52-4185-8f1a-ee568a78df0d",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b111-f08-18/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}