Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/16272/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-728f031b-0240-428a-9b11-442fa676b381",
      "cw-278c626a-6d9c-4da1-9191-3345dc4fde02"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-43da5928-d4b8-42d5-8eed-2c46c23d92bf",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/16272/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-278c626a-6d9c-4da1-9191-3345dc4fde02"
  }
}