Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/31354",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b8e6eb49-f1ba-4c67-ba63-2ae7e954cfd3",
      "cw-305d6218-7c7b-43ef-a5f3-7dec7bf7dd74"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5f7d6908-d013-45ad-9e75-ece778bd5836",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/31354",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-305d6218-7c7b-43ef-a5f3-7dec7bf7dd74"
  }
}