Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/hcpl/iiif/01bc456c-6d0c-412d-accf-57841ada3e5e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0c320bf3-17d4-472e-b088-94b33bbfcf7f",
      "cw-204b2324-6935-4c48-ad9f-4ff13e11ceb5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d6d70ab7-9944-4198-8e3e-89e5068411c5",
    "manifestId": "https://iiif.quartexcollections.com/hcpl/iiif/01bc456c-6d0c-412d-accf-57841ada3e5e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-204b2324-6935-4c48-ad9f-4ff13e11ceb5",
    "thumbnailNavigationPosition": "far-bottom"
  }
}