Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/desplaines/iiif/1c56b22e-c6e4-47ed-8d5f-57266e85ccea/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9e6bb747-b8f0-423e-b62d-7ef918db4998",
      "cw-56c5cea2-93ac-4405-8100-9f1f91b04cd1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4c59d2c4-73b6-4ded-b5dc-3690f794d0cf",
    "manifestId": "https://iiif.quartexcollections.com/desplaines/iiif/1c56b22e-c6e4-47ed-8d5f-57266e85ccea/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-56c5cea2-93ac-4405-8100-9f1f91b04cd1",
    "thumbnailNavigationPosition": "far-bottom"
  }
}