Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/a5ca4aa3-9eab-402b-b382-3ecbea5b5892/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-64429ff3-70fd-4198-9d61-7396c4a3ed32",
      "cw-272155e5-9df2-4fb5-b4d9-19a720de180b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-18a54683-8ca9-43e6-abc7-0da20162742c",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/a5ca4aa3-9eab-402b-b382-3ecbea5b5892/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-272155e5-9df2-4fb5-b4d9-19a720de180b",
    "thumbnailNavigationPosition": "far-bottom"
  }
}