Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/4243178",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a80556e6-284f-4e34-a36d-baaee3474b5a",
      "cw-dd4a31d1-b010-41ea-bdfb-18d75ba88cf1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b4af95cc-6475-4cb4-8c22-e967800d4825",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/4243178",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dd4a31d1-b010-41ea-bdfb-18d75ba88cf1"
  }
}