Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/7500",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b712f7fb-9d8c-4b2d-9b59-396c219c6bef",
      "cw-18046c1c-8098-4d72-8a6b-66b6bc251d26"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-35488558-1584-4ec3-af36-2a6eaf4b7da4",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/7500",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-18046c1c-8098-4d72-8a6b-66b6bc251d26"
  }
}