Hosted Apps don't actually run on your computer, but on a super secure server.
Sometimes the connection can be interrupted. :(
- Try troubleshooting your Hosted apps.
- If that didn’t help and you have permissions to sync files to your computer or use Office in your browser, access your files without Citrix:
- Use Office online in the workplace web app to work on files located in the workplace file system.
- Sync your files.