Why can't i open /friend?

[Marsluvsu]

Every time i do /friend i glitch out or once i can open it i can't accept the friend requests :/

 

[axhe]

Try change your minecraft client to 1.8.9, It's buggy with some versions.

 

[Infectious]

I have the exact same problems with me even though I am in 1.8.9.... Everytime I click on my head (friends) I crash.