Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/44980",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8af139ca-9987-46d0-a92e-b19c742c2eae",
      "cw-d85e6b96-5a83-4761-ad1a-bd8956f39497"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-dd961042-2d38-4cf6-8311-20f94f594303",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/44980",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d85e6b96-5a83-4761-ad1a-bd8956f39497"
  }
}