Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:990067/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:990067/canvas/big_122590.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5f5732dc-fcfd-4fcb-a872-016414dd138d",
      "cw-dfdfe39b-1894-455e-9f1d-061490402787"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-b10581c2-11d7-4bbd-8358-dc3b3fdeacd9",
    "manifestId": "https://zenodo.org/api/iiif/record:990067/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dfdfe39b-1894-455e-9f1d-061490402787",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}