TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digitalcollections.library.gsu.edu/iiif/2/university:941/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0f6d531e-44ac-4e00-af8f-8d3334d8f6e1",
      "cw-9faf89ae-6038-4ebb-812a-953a2754788c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4bf1d85a-b68e-47b1-b72c-16da0ad8ab2e",
    "manifestId": "https://digitalcollections.library.gsu.edu/iiif/2/university:941/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9faf89ae-6038-4ebb-812a-953a2754788c",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "https://digitalcollections.library.gsu.edu/iiif/2/university:941/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}