Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/10380/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-de7d1498-55f5-4070-9cef-ccf8f244784b",
      "cw-1c1d1289-5bda-4d3a-9638-1b7a0d4d0b69"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5fd5455b-3f93-454e-9e06-d320cf8d0fc9",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/10380/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1c1d1289-5bda-4d3a-9638-1b7a0d4d0b69"
  }
}