Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/27343/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d1dbc808-561a-4783-a155-cf6e506dd404",
      "cw-95ab06fd-80a4-4653-a406-40541c9d8252"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0c9bdb71-70d2-444e-9792-688d05cc695d",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/27343/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-95ab06fd-80a4-4653-a406-40541c9d8252"
  }
}