Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/e427dfda-d42c-4965-a982-9b6d210c443d/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b3e5156-7013-4421-9e03-23ff3f5bba0f",
      "cw-047084ea-7e87-42c1-93ed-efeebdcf4113"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-db60c61a-fc2b-448c-bf9f-7152e3a656ee",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/e427dfda-d42c-4965-a982-9b6d210c443d/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-047084ea-7e87-42c1-93ed-efeebdcf4113",
    "thumbnailNavigationPosition": "far-bottom"
  }
}