Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/50281",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a505fcb4-b082-469c-a43c-80276b128383",
      "cw-6855c08b-fb54-4705-9645-43f1e474809e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-63cb6359-c07a-44f9-b8cd-c777ac745267",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/50281",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6855c08b-fb54-4705-9645-43f1e474809e"
  }
}