Both your logs don't show any errors. It's very likely that, an error might have happened only after opening the GSX Toolbar menu so, be sure you do that, then exit Couatl from its Traybar icon and check the log again.
There isn't any need to reload the simulator at any time, the Couatl program now has a Tray bar icon, and can be started and restarted as many times as you need, without restarting the sim. But keep in mind, when you restart it, a previous log that might contains useful information from the previous session, will be overwritten.
So, as soon you realize the menu doesn't open after you click on it, exit Couatl with the Tray bar icon, and check the new log file. And attach it, Zipped.