TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:7922/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bf26753d-a797-43ba-9564-e15dbe7f615c",
      "cw-625f8c42-dc0d-4e90-b60d-8592a91d8ee3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-42f79a93-d5fb-4f21-8245-95f88bbaf4d8",
    "manifestId": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:7922/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-625f8c42-dc0d-4e90-b60d-8592a91d8ee3",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "http://cdm17413.contentdm.oclc.org/iiif/2/imagecoll:7922/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}