Reproduced here, cannot accept any friend requests regardless of the Area and Controls.
Same here, canât do it even after log out and restart
They have to fix this ASAP, why would you play a MMO if you canât play with friends?
I have problems even whispering and inviting people to parties, sometimes stuff just doesnât work.
Can confirm the same.
same here pressing accept or deny does nothingâŚ
Thanks for your report. We are aware of the issue and looking into it.
We will make an announcement after resolving the issue.
Thanks.
I canât add any friends too. Plus the friends notif is bugging me, especially when I see that red number on the lower right side and that I canât do anything about it. 
same problem! that dam red numer! annoying as **** well you can block the character to make the numer dissapear but if is a friend remeber care! idk how to unblock xD!
Same thing here, the friendlist is broken, cant accept or reject the request. Clicking on both buttons doesnât work at all and there will be some korean sentence in red appearing in the middle of my screen.

