Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/70939",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bb5fb9d6-bfa6-4fad-a150-78aa1ba22b79",
      "cw-b2be8de4-3636-4c03-9074-63668092746b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-dd0e7ef3-509f-43bf-9ffc-f29a0b0686d1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/70939",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b2be8de4-3636-4c03-9074-63668092746b"
  }
}