Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/73604",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ba3cc21f-43c2-4259-b754-e8270c6f52fd",
      "cw-4e4bc66b-33ea-4eda-9371-da8ac2388818"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7e86f30e-b038-4d03-b54b-014e69f4fc01",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/73604",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4e4bc66b-33ea-4eda-9371-da8ac2388818"
  }
}