Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/mrspl/iiif/38aee9bf-5e08-42c8-9247-0897b121f3c8/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-048e437d-f7e6-428c-8e85-ea7c60d6ae70",
      "cw-462e5388-35ec-4223-9c38-a3c593d2c1d4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b906770e-abfb-410d-b294-f9b0eeea3444",
    "manifestId": "https://iiif.quartexcollections.com/mrspl/iiif/38aee9bf-5e08-42c8-9247-0897b121f3c8/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-462e5388-35ec-4223-9c38-a3c593d2c1d4",
    "thumbnailNavigationPosition": "far-bottom"
  }
}