Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/55983",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-db50e27b-d9a3-44da-a9c1-05592b119dd5",
      "cw-be1b7f40-2a1f-493b-9758-066488b8df0e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-25f6d785-8695-4279-a1b1-1e0bd2c89f8d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/55983",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-be1b7f40-2a1f-493b-9758-066488b8df0e"
  }
}