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_43.tif",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7f18e565-c448-4175-9c6c-6f5b90b02675",
      "cw-32a45cca-3d0e-463b-a3e0-3b946462f4e3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-37149822-d4f7-4cfc-9656-246a96a4e8ec",
    "manifestId": "https://zenodo.org/api/iiif/record:18620/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-32a45cca-3d0e-463b-a3e0-3b946462f4e3",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}