Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/579380",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-35723d53-a1e7-4a6e-a0ad-3293cc30765b",
      "cw-b7663080-d081-443c-8b00-bee171070afc"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-48d7b936-281a-4600-8204-c71dd0b92525",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/579380",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b7663080-d081-443c-8b00-bee171070afc"
  }
}