TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://cdm17323.contentdm.oclc.org/iiif/2/p17323coll7:8604/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7a3819a7-5c36-44de-bce2-e3180e0380c9",
      "cw-95d1d751-7da6-4e15-b3f4-adaf9875d417"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9da46fb3-c25d-4126-a133-b3e874d6827b",
    "manifestId": "https://cdm17323.contentdm.oclc.org/iiif/2/p17323coll7:8604/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-95d1d751-7da6-4e15-b3f4-adaf9875d417",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "https://cdm17323.contentdm.oclc.org/iiif/2/p17323coll7:8604/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}