Voice chat. problem

I dont know what happen, yesterday it was fine, I was playing with friends and talk but now :v for some reason It not working anymore. When i speak the green border around me not poped up, and I cant hear them either. At first i thought it would my mic problem but I test it out, it was fine. I can hear music in league games too. I test out discord with my friends and it work out too. just not league voice that. is there a way to fix it? :v [sg-soraka] Btw what is input device when i go into setting. It said default setting device My microphone and headphone is realtek high definition audio. is that the reason why i cant talk or something?