Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/6a34f4f4-0df3-42bc-add9-93957132e37c/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-61a411a4-0f8e-4c3c-86ed-80997d1c1691",
      "cw-9a5db59d-0987-4966-8ec1-7d672e9ae493"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a19ccdcc-1d64-4d24-8965-f6aca4f5fb52",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/6a34f4f4-0df3-42bc-add9-93957132e37c/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9a5db59d-0987-4966-8ec1-7d672e9ae493",
    "thumbnailNavigationPosition": "far-bottom"
  }
}