Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/33d4b495-ce4e-4546-a2c7-70caea9d8685/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7b4294a1-9f67-4e2f-8423-cc12bfd4f493",
      "cw-63fa5d34-8fb0-4a9b-aa4a-88e3e5b56ca9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6ab47603-1262-446e-bf8e-d3f16d9f41c2",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/33d4b495-ce4e-4546-a2c7-70caea9d8685/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-63fa5d34-8fb0-4a9b-aa4a-88e3e5b56ca9",
    "thumbnailNavigationPosition": "far-bottom"
  }
}