Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/10950/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c69ebd85-b9a2-48dd-a6f4-293eab9a360d",
      "cw-76385f67-37e5-4ecb-a096-7e02a02db404"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3ef47fee-b12c-4297-8416-1ac661666f2a",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/10950/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-76385f67-37e5-4ecb-a096-7e02a02db404"
  }
}