Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/18c409a7-c973-429e-bcf9-c72c3620930e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4628bb58-164e-4b0a-957a-7737e76d73e9",
      "cw-b6b743dd-79e1-450a-be8b-aed419da26c1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e594207c-a671-4635-9785-6f1c33ee8f31",
    "manifestId": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/18c409a7-c973-429e-bcf9-c72c3620930e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b6b743dd-79e1-450a-be8b-aed419da26c1",
    "thumbnailNavigationPosition": "far-bottom"
  }
}