Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52270",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a7e193c3-80a9-42ba-960d-c8108cc575ce",
      "cw-36d5a67a-2115-4d19-a3f5-aa0c912e54d3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5b62af8b-e138-4e4d-9821-ddfdfd8e00a1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52270",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-36d5a67a-2115-4d19-a3f5-aa0c912e54d3"
  }
}