Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/27205/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-68a57ef5-3973-44d1-b671-ce21a016f8ae",
      "cw-e7a27116-97a4-499c-b6d2-c61156a488fe"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f4bc3617-4387-4411-ace3-427c8dab7fd7",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/27205/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e7a27116-97a4-499c-b6d2-c61156a488fe"
  }
}