Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/23017",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d0212534-374e-4379-8334-527679a2cb05",
      "cw-554f8071-8cf9-4bf4-927c-5007aa878687"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-aa1eaaf0-f598-4976-bcdf-55819dd00e27",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/23017",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-554f8071-8cf9-4bf4-927c-5007aa878687"
  }
}