Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81543",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ae293215-ba02-4c2c-94a0-f4defeada201",
      "cw-9ba568c5-9bd8-43b0-b7a4-c67acbba89bb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-153e83cf-4a5c-4bb7-bb6d-02e64f3527ca",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81543",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9ba568c5-9bd8-43b0-b7a4-c67acbba89bb"
  }
}