Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/53266",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-845e72db-77f4-4ce9-8dc4-543527e546a1",
      "cw-1c2e01dc-d44c-4a7b-8e2a-4df62bd98c18"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b2bd3cdf-b152-49fd-9f3a-7a11daff86bd",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/53266",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1c2e01dc-d44c-4a7b-8e2a-4df62bd98c18"
  }
}