Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/7531",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5fdadefc-0dc5-45cf-88c1-0998b4a871be",
      "cw-035466f3-2696-4c62-8cc0-ab7495551c80"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c12f385a-3fa2-4aa2-819d-57ba564ca146",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/7531",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-035466f3-2696-4c62-8cc0-ab7495551c80"
  }
}