Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68593",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5a796a44-04f8-4863-84a2-44ad1bbf275c",
      "cw-b9d86efc-ce12-42c0-8006-80d6df8d3e1a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-67abf716-8530-4ef8-85b5-1ff52eb950f6",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68593",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b9d86efc-ce12-42c0-8006-80d6df8d3e1a"
  }
}