Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/1ff4d433-47a2-40e3-9440-197abd78e285/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b1a7a22d-30e6-4b77-b90e-8d52a745ab88",
      "cw-79b7b1f2-777d-4ecd-ba31-08450d8dbf87"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-76d3d518-4e57-47d1-bbaa-af13577e3b6d",
    "manifestId": "https://iiif.quartexcollections.com/texas-wesleyan/iiif/1ff4d433-47a2-40e3-9440-197abd78e285/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-79b7b1f2-777d-4ecd-ba31-08450d8dbf87",
    "thumbnailNavigationPosition": "far-bottom"
  }
}