Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52745",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-30bea537-4b3c-433a-abab-982d0828fe46",
      "cw-660de762-5f79-44d9-8aae-79d7d9dc7b2c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-730bfad0-dc70-4800-8080-7230a882656c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52745",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-660de762-5f79-44d9-8aae-79d7d9dc7b2c"
  }
}