Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/57990",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d9344ac7-2744-415e-89ab-943d68eb5256",
      "cw-8964c61f-1295-4f67-969d-c757a098a3d1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-275b2545-c596-4c0d-99a6-bcb451de6e3c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/57990",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8964c61f-1295-4f67-969d-c757a098a3d1"
  }
}