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-7ec10401-c3f8-4bda-ba06-f8c23952fa96",
      "cw-0d382103-00cb-4de9-9d0f-bc517fee5746"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-0e2bf029-94d4-478d-8250-ae9f1b8459b7",
    "manifestId": "https://zenodo.org/api/iiif/record:2850802/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0d382103-00cb-4de9-9d0f-bc517fee5746",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}