TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digitalcollections.library.gsu.edu/iiif/2/university:1012/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4a26d050-f0e3-4bfd-bef9-75b8b7d4335d",
      "cw-5ca4e99c-20f0-40e1-9fd2-7348c1df2862"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-78d721b2-baec-4259-b4ca-dec5c90b2821",
    "manifestId": "https://digitalcollections.library.gsu.edu/iiif/2/university:1012/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5ca4e99c-20f0-40e1-9fd2-7348c1df2862",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "https://digitalcollections.library.gsu.edu/iiif/2/university:1012/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}