Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/73020",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8d0e1905-85d5-42a3-961f-83921145728b",
      "cw-14199dfb-40e0-43e8-a11c-afb87c8887e1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ac7ebcfa-f8be-42f8-a767-917e4f4f7071",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/73020",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-14199dfb-40e0-43e8-a11c-afb87c8887e1"
  }
}