Unadding bricks the chat function

Hey Riot, Today I decided to clear out my friends list of people who I havent played with or talked too in years, I messaged some who were online to check if I actually did know them and they chagned their name or something, after unadding one my chat function froze, the chat was blank and I could not change it no matter what I clicked, I restarted the client, unadded someone else, the chat function closed and would no reopen no matter what I did. Please fix this so I can organize my friends, ty!