Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/44456",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-64f05985-ded3-45dc-bb85-30986907ef8a",
      "cw-13fc4abb-e781-4c4b-b21a-57e80bdc3b21"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ac261e67-f7ef-465b-b4db-dc8f6c70e4df",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/44456",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-13fc4abb-e781-4c4b-b21a-57e80bdc3b21"
  }
}