Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm16022.contentdm.oclc.org/iiif/info/p16022coll230/520/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2e88c2be-7ee7-46ed-b41d-b478bd51d3f9",
      "cw-0c8e0ee3-4f02-4025-b1d9-3d47cb140cbd"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-49b6f0e3-16fe-404e-9116-2302c0f1a3b5",
    "manifestId": "https://cdm16022.contentdm.oclc.org/iiif/info/p16022coll230/520/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0c8e0ee3-4f02-4025-b1d9-3d47cb140cbd"
  }
}