Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/14584/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-49e11f46-d311-4004-8a75-bfba256e89d4",
      "cw-4d8484e9-04ed-4a00-a91e-0b26ada1cb55"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a04cbc4a-9fa0-40d6-88a1-2bc627a4d352",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/14584/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4d8484e9-04ed-4a00-a91e-0b26ada1cb55"
  }
}