Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68438",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fa9bd7aa-a3db-40d2-8224-8e83c417620b",
      "cw-ed9856de-5af2-4dc8-8fc4-132c83da6939"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-aac03101-508b-4d0f-82e4-549150398956",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68438",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ed9856de-5af2-4dc8-8fc4-132c83da6939"
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}