Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:2941304/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:2941304/canvas/BR0000012476589.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d5739dfe-d056-4819-81ae-554c34814ee4",
      "cw-0cf9e32d-76ae-4814-bd82-15f3011306b2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-e0d6063e-0be5-4c75-bb94-bd7825460b65",
    "manifestId": "https://zenodo.org/api/iiif/record:2941304/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0cf9e32d-76ae-4814-bd82-15f3011306b2",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}