Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/mrspl/iiif/7188fb7c-a839-4166-9558-36a375c3c47a/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6d81902b-250d-49c4-a7c2-9dc4ce63e492",
      "cw-77015e49-a384-4732-9e3f-fc1d1b391cc8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1583ab45-cc1e-473c-9673-a38828b58f38",
    "manifestId": "https://iiif.quartexcollections.com/mrspl/iiif/7188fb7c-a839-4166-9558-36a375c3c47a/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-77015e49-a384-4732-9e3f-fc1d1b391cc8",
    "thumbnailNavigationPosition": "far-bottom"
  }
}