Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:2850538/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:2850538/canvas/BR0000012189441.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0c9e9d64-b547-4d24-93cd-241c77de3b8b",
      "cw-6035b729-a54f-4f3f-83f1-31e3a507f29b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-b6ab75aa-e44e-4723-bf7b-20395cc3a65f",
    "manifestId": "https://zenodo.org/api/iiif/record:2850538/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6035b729-a54f-4f3f-83f1-31e3a507f29b",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}