No output audio but there's audio on recording

[rejoiceiam]

Hello! I am new to live streaming and my friends recommended me to use OBS. I am playing via my PS4. It worked fine except for the audio. In my livestream, the audio is there but while I'm playing I don't have any audio. Is it something to do with the audio input/output capture? Btw, I am livestreaming on Facebook Live.

Hope you can help!
Thank you so much