Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68638",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-543f74f0-6ed0-479c-9a3e-861fc1bd71d7",
      "cw-72f6541e-5fee-4bd5-91e2-44d537eea32a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-793b177a-8fa4-44f0-8d35-fe7b5bc1440a",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68638",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-72f6541e-5fee-4bd5-91e2-44d537eea32a"
  }
}