Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/40377",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a450b945-dfc1-443d-8fb4-4cffa85caee7",
      "cw-74a0e77a-5fe5-4b38-9dec-2240bf1669ef"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-35c0cd17-01b9-4a0e-9a2f-8d8ebfb8e527",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/40377",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-74a0e77a-5fe5-4b38-9dec-2240bf1669ef"
  }
}