I have moved this post to the section "Technical Support".
What Moukanjyo said can help in case it doesn't follow these steps.
1. Open your windows explorer and go to "...\GEAndromida\release".
2. Delete files "client.xml" and "user.xml". Rename "client_BACKUP.xml" to "client.xml and "user_BACKUP.xml" to "user.xml".
This way you restore majority of the configuration to the factory settings.
3. Next you go to subfolder "...\user\hotkey" and delete all files.
4. If the steps above don't help, open "...\GEAndromida\release\geconfig.exe" and try the lowest settings.
Our game client isn't selfmade, it is the same as official ones so this issue is due to user-specific files and not the engine itself.