It doesnt start if i open from menu/icon but it starts if i open it from terminal

[Kryuko]

Hello.
I have ubuntu 18.04 mate.

PAC starts correctly if i type "pac" from my terminal.

BUT it doesn't work properly if i open it from my icon / .desktop file / menu, etc.
It starts, but when i try to connect to an ssh server it freezes.

This is the output if i open from the icon:
INFO: Using 'standard Gnome2' tray icon
*** unhandled exception in callback:
*** Can't locate object method "new" via package "Gnome2::Vte::Terminal" (perhaps you forgot to load "Gnome2::Vte::Terminal"?) at /opt/pac/lib/PACTerminal.pm line 500.
*** ignoring at /opt/pac/lib/PACMain.pm line 1398.

I've set the .desktop file to type the commands in a terminal to see the errors.

If i do the same thing by manually typing pac in the terminal everything works as expected.

What can it be the issue?