Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/73870",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-19d87264-ef43-4b22-9b9b-55ede4e80fe1",
      "cw-6935acac-ac80-4457-857b-49fb0c016c2c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1bafcc5f-f128-4497-98d2-348760de0fa4",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/73870",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6935acac-ac80-4457-857b-49fb0c016c2c"
  }
}