Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/70920",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
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      "cw-5af2587e-ac8b-4bc2-860d-a4687f177ed3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-280cb00f-222b-4add-8636-2a5e8c1758d2",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/70920",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5af2587e-ac8b-4bc2-860d-a4687f177ed3"
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}