Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81786",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1f94350d-3f69-4916-8241-144ef013ea0f",
      "cw-c05b4c9f-7ca2-4e7c-99ba-220f83d7cfc8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5464e09a-bc4f-4f94-a9ac-e17e2cd825d7",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81786",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c05b4c9f-7ca2-4e7c-99ba-220f83d7cfc8"
  }
}