Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39761",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-232bf0ba-7379-450e-957e-9be95ab42e76",
      "cw-3a47f0cd-9bc7-4ed6-bfc1-8490e3dcdabb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d159f856-1dd4-4664-ac35-ed3a7d4c190b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39761",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3a47f0cd-9bc7-4ed6-bfc1-8490e3dcdabb"
  }
}