Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:3747981/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:3747981/canvas/figure.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ee8d7ff8-6be4-413c-befb-3e7585f878a2",
      "cw-1132f7ab-5983-4ff3-8773-20666e6d2633"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-520d39f8-1293-4c2c-b97c-9d63d1530f3d",
    "manifestId": "https://zenodo.org/api/iiif/record:3747981/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1132f7ab-5983-4ff3-8773-20666e6d2633",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}