Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/1120/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-150b8b41-4952-4a0a-902b-6e82d975a63a",
      "cw-abcf5ca3-ddad-4671-b8de-66cddc4a1a3b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-03846ad8-85be-4cc8-9a92-0f840a57c925",
    "manifestId": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/1120/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-abcf5ca3-ddad-4671-b8de-66cddc4a1a3b"
  }
}