Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/12931929",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-46acbd40-c087-4574-b0f3-5a533002f045",
      "cw-7eb0f5e3-4c7c-41e9-8f2f-56d84d6424e2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-df2d00ed-920c-4a49-a922-e01091bb3317",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/12931929",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7eb0f5e3-4c7c-41e9-8f2f-56d84d6424e2"
  }
}