Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/57792",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-cc4b338b-1e86-49da-9aa3-4c7ac9485f6b",
      "cw-161bcc78-52aa-4d11-b9ee-04eb2eb780b1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-df2f5003-0acc-4386-a88c-3eb6f2304447",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/57792",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-161bcc78-52aa-4d11-b9ee-04eb2eb780b1"
  }
}