Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digital.libraries.psu.edu/iiif/info/maps1/26264/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-82947e4d-fc9d-4606-82f1-d61ed292b99d",
      "cw-c33a997f-389b-4187-a7b1-e55acafd935b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-faa68cd2-82bc-46eb-b395-1fb671e37d5d",
    "manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/26264/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c33a997f-389b-4187-a7b1-e55acafd935b"
  }
}