TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:3043/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2028ed44-6084-470d-9f34-70fc364f8413",
      "cw-87fea4fd-a352-4a8a-ad8d-58aa6985a398"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e8776ac0-c1e0-4e2e-9ab6-883b5c8b00f3",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:3043/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-87fea4fd-a352-4a8a-ad8d-58aa6985a398",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:3043/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}