Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/10598/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8e8b83c9-e0ea-401d-a737-5bf012c46da7",
      "cw-664f12b9-3ef0-495f-9058-df57d4ad201c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9b1f27ce-6045-4285-afae-bf4528c95758",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/10598/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-664f12b9-3ef0-495f-9058-df57d4ad201c"
  }
}