Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/capeannmuseum/iiif/048fdb84-bcc4-4e2c-b1b0-59326189bc4d/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7f87f26d-0e65-4c65-86a3-c5495f699984",
      "cw-71330600-5848-4b55-b545-168bed397cae"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-cce65ff3-3b61-447a-b2db-e24c51f0b930",
    "manifestId": "https://iiif.quartexcollections.com/capeannmuseum/iiif/048fdb84-bcc4-4e2c-b1b0-59326189bc4d/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-71330600-5848-4b55-b545-168bed397cae",
    "thumbnailNavigationPosition": "far-bottom"
  }
}