Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/53378",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dfb84a2e-717f-4fad-91e7-a82002cecc80",
      "cw-b4fce8b2-03b8-467f-aec5-42ca64b410e3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0c1ec029-a64a-434d-8177-981b409083d1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/53378",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b4fce8b2-03b8-467f-aec5-42ca64b410e3"
  }
}