TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digitalcollections.library.gsu.edu/iiif/2/arwg:11437/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-56731f03-69e6-4f1a-9149-6d251218c8d4",
      "cw-767a0422-7c82-4603-8d8e-c7b65c6376f5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0c0ede15-5467-40a1-b053-e5e22869eca7",
    "manifestId": "https://digitalcollections.library.gsu.edu/iiif/2/arwg:11437/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-767a0422-7c82-4603-8d8e-c7b65c6376f5",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "https://digitalcollections.library.gsu.edu/iiif/2/arwg:11437/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}