Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/4ef23ecc-4dd2-472a-8e03-9e22a33f1cb4/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-32d72f05-81c7-4c00-a434-251094a6ba4b",
      "cw-2f974b85-c211-47f6-8882-7e775660f783"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-22dfac91-253a-47f9-b707-6007f1a0dc2b",
    "manifestId": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/4ef23ecc-4dd2-472a-8e03-9e22a33f1cb4/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2f974b85-c211-47f6-8882-7e775660f783",
    "thumbnailNavigationPosition": "far-bottom"
  }
}