Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/28889",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-298157ea-48ce-4c75-880c-79cb938fd07c",
      "cw-cc43deb1-9878-4747-8f8b-790b5a65f1b8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-03ade0bc-7952-40a9-a093-214bbeaafd4f",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/28889",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cc43deb1-9878-4747-8f8b-790b5a65f1b8"
  }
}