Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/2d15e977-cdc2-4c26-bcc6-6e8a8c5d6b25/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-783d4298-81c2-4ebe-899a-fef168b7ee0e",
      "cw-d42440fa-9882-4504-8fa2-ac286c64e333"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f5dfe5ba-8819-45f9-85f9-2efefacf55eb",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/2d15e977-cdc2-4c26-bcc6-6e8a8c5d6b25/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d42440fa-9882-4504-8fa2-ac286c64e333",
    "thumbnailNavigationPosition": "far-bottom"
  }
}