Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/590c7420-45bb-476e-bdaa-84ce35443803/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8dfc2f1e-3361-4544-9129-00211a54b8af",
      "cw-10cff8c0-0a1d-4fec-b8c1-194d54e52ec0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7edb28c4-5c9e-480c-93ea-3727bf61b3c6",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/590c7420-45bb-476e-bdaa-84ce35443803/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-10cff8c0-0a1d-4fec-b8c1-194d54e52ec0",
    "thumbnailNavigationPosition": "far-bottom"
  }
}