Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74436",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bffd928c-e314-495b-8c47-427fe85eeba3",
      "cw-e1f9dc4d-7e83-4164-b126-e69a7ccc2851"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7feed950-0a6a-4df5-bc45-beaded2f4656",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74436",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e1f9dc4d-7e83-4164-b126-e69a7ccc2851"
  }
}