Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/6012554",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e44077aa-b16e-485c-b23b-0b36d4050e25",
      "cw-dcc3596d-a67e-4d8c-a08e-a4a138a28456"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-25efbf15-366a-4dcf-9e40-daaf28a5525b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/6012554",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dcc3596d-a67e-4d8c-a08e-a4a138a28456"
  }
}