Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/677/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c7001b6d-35c2-40c7-9c94-90e14667cf85",
      "cw-13af71c1-6f20-4747-a7fc-d19f6d8a9279"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3820d530-9473-49bf-b28c-3c56ec198ba4",
    "manifestId": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/677/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-13af71c1-6f20-4747-a7fc-d19f6d8a9279"
  }
}