Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/66750",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-067a1b10-ad7d-4e19-adae-689d78409e0b",
      "cw-c09a1d91-06a7-45f3-b2f5-f0b58b77f832"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2f59ee1e-be1b-4fd0-87c8-456329f302d2",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/66750",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c09a1d91-06a7-45f3-b2f5-f0b58b77f832"
  }
}