Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52430",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-013a79fa-e3dc-471a-8c7c-e0f399569fe7",
      "cw-9e09c1c6-f643-43f6-b5e1-584eed3d15dc"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4574b072-a1a8-4fef-8c3b-4b805e2bb9f2",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52430",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9e09c1c6-f643-43f6-b5e1-584eed3d15dc"
  }
}