Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/74a1a37d-528c-4f30-8391-15fe378705eb/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b5bcced8-c48c-4702-9ee4-cd66b369133f",
      "cw-1d5a4689-7502-4fce-9df6-b9385dd2b919"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-92164bf7-17f0-45c0-b847-586003651204",
    "manifestId": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/74a1a37d-528c-4f30-8391-15fe378705eb/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1d5a4689-7502-4fce-9df6-b9385dd2b919",
    "thumbnailNavigationPosition": "far-bottom"
  }
}