Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:2850802/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:2850802/canvas/BR0000012189120.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-69d2923f-4657-4183-84dd-8f672399d8ea",
      "cw-43d1f2b3-7f2b-4e60-a7ea-16fc479ff9a5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-c238479d-1712-424b-bb0f-34992ecbffa9",
    "manifestId": "https://zenodo.org/api/iiif/record:2850802/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-43d1f2b3-7f2b-4e60-a7ea-16fc479ff9a5",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}