The volume on my mac doesn't work
I plugged my speakers to my MacBook and then it started to sound blurry so I umplugged them quickly and now it doesn't sound at all. When I try to turn the volume up, and below the little volume squares, is this sign and the little speaker appears gray. I restarted it three times and it stays the same. Please, help me, I'm really worried, my computer is new. Thank you 😟😟
MacBook Air