Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/3964200",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f1f22af0-ee67-43ff-a76f-8ca67aebf921",
      "cw-4b1090e5-c735-4cc6-98c9-d5df1409c48e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d4338132-a979-42ff-9ecb-60a0a011fa95",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/3964200",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4b1090e5-c735-4cc6-98c9-d5df1409c48e"
  }
}