Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/952/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-984c55e3-97df-4984-93bb-0f4e53a8a34f",
      "cw-b3ac832b-88b7-42fe-8bc9-ba185faf6634"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-550ca076-d677-43df-baa4-a55ff88a12eb",
    "manifestId": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/952/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b3ac832b-88b7-42fe-8bc9-ba185faf6634"
  }
}