Pop os 19.10 Open and GUI confusion

I connot open my citra.i have make it successfully without no error.But it do not work when i click it icon.I cannot get GUI.And via terminal i input ‘citra’ ,it works.Even,i successfully install pokmn,and try to open the game without GUI.So,problems are here:
1.How can i get GUI to use?
2.If cannot,How can i open a game?it seems installed successfully.what is the next step?

System Information

Diagnostic Log
[email protected]:~$ citra --help
Usage: citra [options]
-g, --gdbport=NUMBER Enable gdb stub on port NUMBER
-i, --install=FILE Installs a specified CIA file
-m, --multiplayer=nick:[email protected]:port Nickname, password, address and port for multiplayer
-r, --movie-record=[file] Record a movie (game inputs) to the given file
-p, --movie-play=[file] Playback the movie (game inputs) from the given file
-d, --dump-video=[file] Dumps audio and video to the given video file
-f, --fullscreen Start in fullscreen mode
-h, --help Display this help and exit
-v, --version Output version information and exit

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[ 2.883443] Frontend citra/citra.cpp:operator():244: 99%
[ 2.883523] Frontend citra/citra.cpp:operator():244: 99%
[ 2.883591] Frontend citra/citra.cpp:operator():244: 99%
[ 2.883644] Service.AM core/hle/service/am/am.cpp:InstallCIA:375: Installed /home/rayjue/baidunetdiskdownload/Pok/Pokemon Y.cia successfully.

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In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.