Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.archivelab.org/iiif/naeb-b072-f03/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ebc6215e-71e6-4a92-84c1-a502d951cb8e",
      "cw-b0dc1e93-6945-401f-9a6a-531187791143"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-059da56f-ea0b-49c7-90be-addf8aeb442a",
    "manifestId": "https://iiif.archivelab.org/iiif/naeb-b072-f03/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b0dc1e93-6945-401f-9a6a-531187791143",
    "thumbnailNavigationPosition": "off",
    "loadedManifest": "https://iiif.archivelab.org/iiif/naeb-b072-f03/manifest.json",
    "view": "single",
    "canvasIndex": 0
  }
}