TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:9570/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5b2843a1-2911-4d9c-ba73-d7ff1583be73",
      "cw-679afc4a-87dd-44cb-b2b0-c73549d21703"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a1f4f686-89a7-4c7f-a378-43e491601706",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:9570/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-679afc4a-87dd-44cb-b2b0-c73549d21703",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:9570/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}