You'll have to provide a few more details for me to help you with your problem.
1. Which latest version of YAAC (the beta build number and date)? If you still have the Help menu, the About choice on it will tell you.
2. What operating system (Microsoft Windows, Linux, etc.) are you running? What version of it (Windows 11, Ubuntu 20, etc.)? What CPU architecture (Intel or ARM)?
3. What version of the Java runtime are you using (8, 11, 17, 21, 22, 23, 24)?
4. Do you have any transmit-capable ports in your YAAC configuration? Note that the Message and Query menus are useless if you have no path to send the message or query.
5. When running YAAC from a terminal session, are there any exception stack traces? If so, please send the YAAC.out file from your configured logdir.
Remember, I can't look over your shoulder and see your screen.
Andrew, KA2DDO
author of YAAC
installed the latest version but Message and Query are missing from the tool bar