Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/30890",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8d6ece0b-8bda-48dd-ad38-62b921c55b57",
      "cw-8f0294dd-c673-46f4-a1c8-76df4a4c5fe9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6565b2ae-cf87-4af5-9409-a156402cef15",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/30890",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8f0294dd-c673-46f4-a1c8-76df4a4c5fe9"
  }
}