Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:14992705/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:14992705/canvas/Add%20a%20heading%20%281%29.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-92bb5bb7-6ac4-4c12-bcce-b191c549e465",
      "cw-a9cb25e5-a244-4860-b379-ed23800e989d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-626007c0-962e-48ec-ba38-47ac5d74c2f1",
    "manifestId": "https://zenodo.org/api/iiif/record:14992705/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a9cb25e5-a244-4860-b379-ed23800e989d",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}