Game bug - i left the guild unintentionally

I was going to mirumok with my horse in arsha server then my guild name lost from my head. First i thought that someone banned me from guild and i asked about that to my friends they said you ''LEFT''. But how can that happen when i was riding my horse to mirumok?


Like you see my family name is PEKER and it says i left. If there is a keybinding for left the guild maybe i have had press that keys but i dont think that there's a keybinding for left guild.

After that i lost my game connection instantly and i thought that im banned from the game but im in game again without a guild.