Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:6378696/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:6378696/canvas/figure.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8c4ecd6c-7882-4a7a-bedf-ccfe6080725b",
      "cw-8276e072-e51f-48ba-8643-09c4d4faf616"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-b0abcee3-2a15-4b6d-8b34-36adf1c2234c",
    "manifestId": "https://zenodo.org/api/iiif/record:6378696/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8276e072-e51f-48ba-8643-09c4d4faf616",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}