Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/16062/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ceaa10cf-62df-4f7c-bc56-62abc1ccfc53",
      "cw-a27680b9-89f9-4a86-bfe1-750e5cdb8b01"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8a4cd758-9285-4ad0-94f6-d93ea1965338",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/16062/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a27680b9-89f9-4a86-bfe1-750e5cdb8b01"
  }
}