Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/8960931",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ae2a5148-9bc6-4cd9-88d1-2ab7612f9256",
      "cw-b7163042-f149-4de8-a9bc-89fae449cfe7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a6a9dbc0-2cf5-45fb-8b1a-22000fc21f68",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/8960931",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b7163042-f149-4de8-a9bc-89fae449cfe7"
  }
}