Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/83993",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-85449b25-f607-4a0a-a922-adee5a73cd48",
      "cw-4f51eaf7-60c3-4c0d-8b6e-f7f1dd794df3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9e1833ff-503d-425c-a5b5-a02e78e66646",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/83993",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4f51eaf7-60c3-4c0d-8b6e-f7f1dd794df3"
  }
}