Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:6627521/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:6627521/canvas/Silk_machines_026.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e99992c6-0cc4-4b55-b725-59a6adfe32c8",
      "cw-c0313e32-8a9d-46af-baa9-5a8b9fe5c0c2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-fc4a4913-5801-46e7-9f36-c29bce1fba7e",
    "manifestId": "https://zenodo.org/api/iiif/record:6627521/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c0313e32-8a9d-46af-baa9-5a8b9fe5c0c2",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}