Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/4054",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c0f51864-87b4-430d-bfd9-291ccb3e2f02",
      "cw-dbfd0156-5071-45b2-a2fc-c032c5e9e860"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bf22bd30-84d5-41a4-b6d3-a480c9ca946a",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/4054",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dbfd0156-5071-45b2-a2fc-c032c5e9e860"
  }
}