Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/48756",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b9d6d346-485e-4b1a-8373-c6091f03d72d",
      "cw-830e7554-d85c-44dd-83ff-27515d6d1707"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-415e7285-7d39-40dd-9a6b-566860057f59",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/48756",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-830e7554-d85c-44dd-83ff-27515d6d1707"
  }
}