Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/12668636",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-37e44c76-ef75-4b8d-ab80-2e3fcf4dd5e5",
      "cw-f83c5512-6375-4671-a5e5-c8c7cb57267c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1dd65819-78a6-46ba-aad9-c06a939040b2",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/12668636",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f83c5512-6375-4671-a5e5-c8c7cb57267c"
  }
}