TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://digitalcollections.library.gsu.edu/iiif/2/broadcast:740/manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5cf3d1ff-7ace-462e-9f91-325329451ee7",
      "cw-77d2d07b-9185-4028-aeb9-78634dbb859c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f28869b3-1ef2-49c7-9896-60b27dac279e",
    "manifestId": "https://digitalcollections.library.gsu.edu/iiif/2/broadcast:740/manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-77d2d07b-9185-4028-aeb9-78634dbb859c",
    "thumbnailNavigationPosition": "none",
    "allowClose": false,
    "loadedManifest": "https://digitalcollections.library.gsu.edu/iiif/2/broadcast:740/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
  }
}