Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:5821305/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:5821305/canvas/figure.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-85ace92e-71a2-4edc-9624-1c77963758c4",
      "cw-21bc44d2-5d61-4c5d-8ce6-426cfe790cdb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-b5891a31-b6b6-42df-b90b-39d6aa45e07a",
    "manifestId": "https://zenodo.org/api/iiif/record:5821305/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-21bc44d2-5d61-4c5d-8ce6-426cfe790cdb",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}