Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/54204",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3e1c306e-195c-4783-83b7-430a03a4026b",
      "cw-734115eb-fc65-4357-afd3-47d2197c0871"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d8d2e8df-f93a-4ea3-b846-eda646983958",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/54204",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-734115eb-fc65-4357-afd3-47d2197c0871"
  }
}