Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/28260",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8cdc8777-eb74-4bee-a3d3-1f74c4745d28",
      "cw-b9d3d6e7-1e83-4f6c-bc23-e36d94a080a8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2f645245-301a-48c7-b3c4-188d623bb42f",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/28260",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b9d3d6e7-1e83-4f6c-bc23-e36d94a080a8"
  }
}