Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/886a0db1-4c92-4834-abdd-d99b2a6170f1/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-62632143-9014-407c-99e3-e5a268cd39d5",
      "cw-12532d4a-ffb2-4c8c-b4b0-1f1bd2bb15ac"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-838bed96-3dd7-41ef-9939-efe9a672f7ff",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/886a0db1-4c92-4834-abdd-d99b2a6170f1/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-12532d4a-ffb2-4c8c-b4b0-1f1bd2bb15ac",
    "thumbnailNavigationPosition": "far-bottom"
  }
}