Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/690/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fa42e2a8-b8f2-49bb-a997-30a1a4d879e6",
      "cw-02a66956-bf54-428f-8f96-69da30bace47"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7e3d3173-0896-41ee-9c1e-359b9c129440",
    "manifestId": "https://cdm16022.contentdm.oclc.org/iiif/info/mgs/690/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-02a66956-bf54-428f-8f96-69da30bace47"
  }
}