Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:4440946/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:4440946/canvas/figure.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-49ef0325-bc58-4ccb-a12e-a1ca1a4a80b2",
      "cw-614f8a85-0581-4b58-8f87-83166ff233e8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-621af75b-822c-4d02-badd-5f305173085f",
    "manifestId": "https://zenodo.org/api/iiif/record:4440946/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-614f8a85-0581-4b58-8f87-83166ff233e8",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}