Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:18620/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:18620/canvas/anthrome_61.tif",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-95f45c70-b8bb-4014-b561-2429b990c686",
      "cw-2c22a5a9-2a1d-48ac-b8b3-6813ebb04bb0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-da5cb60c-e6a2-4f3a-812a-2f898e60dbd8",
    "manifestId": "https://zenodo.org/api/iiif/record:18620/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2c22a5a9-2a1d-48ac-b8b3-6813ebb04bb0",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}