TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digitalcollections.library.gsu.edu/iiif/2/university:1306/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7c9e0828-9f3d-4fb0-b409-51c6cc3654a6",
      "cw-c5ef4036-71a2-4a82-a5e6-91ac6b5bc240"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8d703175-63d1-4557-966d-c4fc0bdbdfbb",
    "manifestId": "https://digitalcollections.library.gsu.edu/iiif/2/university:1306/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c5ef4036-71a2-4a82-a5e6-91ac6b5bc240",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "https://digitalcollections.library.gsu.edu/iiif/2/university:1306/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}