Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/14282/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c73fb927-7929-4c3c-aca9-2a81b1183949",
      "cw-87cee232-71f8-401c-9b4b-fe714bcb07b0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e5e5d653-c7d7-473c-b2e8-279c0cf63280",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/14282/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-87cee232-71f8-401c-9b4b-fe714bcb07b0"
  }
}