Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39800",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ba8f56cc-e9f5-4e88-b184-d5e550cb9f31",
      "cw-eda195b1-3da5-47bd-8a63-016613a04b9b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b6073815-ca11-4eea-9f1c-cac51b33c415",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39800",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-eda195b1-3da5-47bd-8a63-016613a04b9b"
  }
}