Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/samford/iiif/393bca50-3fdc-4755-80f3-51436d536695/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e75f6598-a7e3-4a14-a448-cf9bbf1f6442",
      "cw-caf4a510-02cf-4fd2-9a5b-bc8506331be4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9ebaf85b-6b2f-46ae-aa6c-8d1db27723c1",
    "manifestId": "https://iiif.quartexcollections.com/samford/iiif/393bca50-3fdc-4755-80f3-51436d536695/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-caf4a510-02cf-4fd2-9a5b-bc8506331be4",
    "thumbnailNavigationPosition": "far-bottom"
  }
}