Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:439069/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:439069/canvas/uiips.PNG",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0f65d36c-09e0-4d47-b11d-342df7dbb095",
      "cw-f6ffe0bd-c099-4064-9f72-24da7f617fb8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-2826c49c-1017-44dc-abdf-c3c149b2db2e",
    "manifestId": "https://zenodo.org/api/iiif/record:439069/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f6ffe0bd-c099-4064-9f72-24da7f617fb8",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}