Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/3057",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a605bb03-7011-430d-921f-b32d68caf2b1",
      "cw-b58dcaf1-2b4e-47e8-987c-5e4b1a37cc2b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-40c72a08-4fd9-4eb3-b5df-b3b0ecde85fd",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/3057",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b58dcaf1-2b4e-47e8-987c-5e4b1a37cc2b"
  }
}