Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/7519",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-19382cc1-95a0-4c3c-b3eb-4d8987a621c7",
      "cw-feefdb6d-d071-468e-9b79-77a8f1db04d8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-040b2511-f45d-4876-a89f-afa73f82650b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/7519",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-feefdb6d-d071-468e-9b79-77a8f1db04d8"
  }
}