Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archive.org/iiif/naeb-b070-f07/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b808ffe9-cd39-4587-81e7-ceb987d0f95a",
      "cw-97e81150-78e8-4d46-8269-fdb0bd55bcbc"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-28b06b90-e2b2-4a37-86a1-eeff8b4fe329",
    "manifestId": "https://iiif.archive.org/iiif/naeb-b070-f07/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-97e81150-78e8-4d46-8269-fdb0bd55bcbc",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archive.org/iiif/naeb-b070-f07/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}