Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:2994281/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:2994281/canvas/BR0000011958635.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0a2c1901-204b-4f75-b55b-de6bd54da387",
      "cw-538a12c7-8d65-471e-ba01-a68accdcaa1e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-5a98186a-54e6-4cf2-b469-6fdfb2596a70",
    "manifestId": "https://zenodo.org/api/iiif/record:2994281/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-538a12c7-8d65-471e-ba01-a68accdcaa1e",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}