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_63.tif",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7514323a-856c-4ab9-b956-75d53a627305",
      "cw-839e1065-e0d8-4c36-81cd-7a2b88ada2fb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-d0e8f275-69cd-48d5-aa5d-ef69fa774907",
    "manifestId": "https://zenodo.org/api/iiif/record:18620/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-839e1065-e0d8-4c36-81cd-7a2b88ada2fb",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}