Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.library.unt.edu/ark:/67531/metadc2342564/manifest/",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-52e60d7c-0250-4965-a5f2-dade7b26d641",
      "cw-c1010278-5338-4c7e-adf9-9c33f44928de"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9b01ea01-2c2f-4d62-9b1a-bea1dcf1de21",
    "manifestId": "https://digital.library.unt.edu/ark:/67531/metadc2342564/manifest/",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c1010278-5338-4c7e-adf9-9c33f44928de",
    "thumbnailNavigationPosition": "far-bottom"
  }
}