Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/44756",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dd0b7fa6-fc89-46d6-bcc5-397c20d0c276",
      "cw-0733d96f-c148-4d32-92db-c6a034d3ea36"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9cb12e51-ac1e-4812-8d43-8e540529b902",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/44756",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0733d96f-c148-4d32-92db-c6a034d3ea36"
  }
}