Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/997c231f-f3cf-4063-970b-d44581c0001c/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-230941ef-2d6d-4520-ba6d-414882086a77",
      "cw-baf68d7a-6345-498b-8376-ef371caad20e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2f3686a2-7260-4d34-9e9f-ad5783090538",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/997c231f-f3cf-4063-970b-d44581c0001c/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-baf68d7a-6345-498b-8376-ef371caad20e",
    "thumbnailNavigationPosition": "far-bottom"
  }
}