Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/685/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c436e4bf-3e53-4b06-b489-faa84ffe42fb",
      "cw-ef260f3d-67af-4529-ae5d-db2f72cbb4f9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-709f7e82-54ef-472e-8f37-5503a2174f2d",
    "manifestId": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/685/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ef260f3d-67af-4529-ae5d-db2f72cbb4f9"
  }
}