Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/d950a75c-e8c9-4a06-83a1-603d2da27c95/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3c426af0-70f4-43d4-98b7-022d551f547e",
      "cw-cd711174-6917-4060-94cf-78c5b2fac521"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e4988249-4d4c-4151-9b39-38747c6da2c6",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/d950a75c-e8c9-4a06-83a1-603d2da27c95/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cd711174-6917-4060-94cf-78c5b2fac521",
    "thumbnailNavigationPosition": "far-bottom"
  }
}