Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/12306669",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-01844dbc-944e-44c4-b61e-5e7e5ff8c11f",
      "cw-697322c1-cff3-4ec4-8d61-e955060be691"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8423e88a-630a-408e-8530-03540ce8cd50",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/12306669",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-697322c1-cff3-4ec4-8d61-e955060be691"
  }
}