Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/12600413",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c58f18ba-460b-4aea-9ce4-f4063cd0e09f",
      "cw-3a542880-c244-404a-894d-ce4c839f95f0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-858a8494-79d1-4647-8341-e3f72cf38cb4",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/12600413",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3a542880-c244-404a-894d-ce4c839f95f0"
  }
}