Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/e6d546a7-520b-4356-a838-e638a70fbe13/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b52f690a-6f2d-4741-935b-dba8296831ae",
      "cw-25e9298e-afc4-4831-ace7-0710dd998c3b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a1cdb98e-add2-4ce7-bcf8-70232e1d0ae4",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/e6d546a7-520b-4356-a838-e638a70fbe13/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-25e9298e-afc4-4831-ace7-0710dd998c3b",
    "thumbnailNavigationPosition": "far-bottom"
  }
}