Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:6796571/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:6796571/canvas/figure.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2e2fe712-b660-4069-ab75-376fc77a2e9b",
      "cw-8c675448-000d-4350-bcfc-0495e049acae"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-8164bc83-6a0c-42b8-b30b-55555b0750c6",
    "manifestId": "https://zenodo.org/api/iiif/record:6796571/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8c675448-000d-4350-bcfc-0495e049acae",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}