Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/23351",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-95d4daec-c393-4c55-80be-305e6031007b",
      "cw-c91e127d-82a1-4bcd-a22a-61270353a001"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ff5894d8-69c2-45b2-8665-a008b74dfaa8",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/23351",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c91e127d-82a1-4bcd-a22a-61270353a001"
  }
}