Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/5061/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-814b21db-ca36-491a-a85c-74b10e6fa5cd",
      "cw-d57fe81e-717f-4ce8-bd56-a449245b2a48"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-01d6ddbc-a6e0-4047-8c9c-6218d6b2c6e3",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/5061/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d57fe81e-717f-4ce8-bd56-a449245b2a48"
  }
}