Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/83956",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6a4b47b2-16e9-43b0-a485-7a38db1d336a",
      "cw-e9df28a3-39ab-4b05-b38e-de4c5d5c027e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3fb36e13-035b-4a4d-b371-b6b0b2cf9823",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/83956",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e9df28a3-39ab-4b05-b38e-de4c5d5c027e"
  }
}