Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/a94e4a98-5868-4b3b-8fbf-d693fe0cef92/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-16b743f3-d569-44fd-9eaf-06926736eb12",
      "cw-4d22dfaa-1f41-4180-8f95-8fdf668566f7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f0d5445e-c9a7-4b8b-b972-a41fd110b360",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/a94e4a98-5868-4b3b-8fbf-d693fe0cef92/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4d22dfaa-1f41-4180-8f95-8fdf668566f7",
    "thumbnailNavigationPosition": "far-bottom"
  }
}