stk500 error after circuit shorted

So I’m trying to set up the following circuit and make the RGB strip change color as noise levels in the room change.

However, at one point I accidentally supplied the 12V voltage directly to the breadboard right after removing one of the transistors and forgetting to put it back in. This caused everythig to short-circuit and even my laptop turned off immediately. Ever since then, I’ve been getting the following errors even though the power and L leds are on, along with the sound sensor:

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x87
avrdude: stk500_recv(): programmer is not responding

I’ve encountered this error once before but it somehow magically disappeared. After how I messed up, I’m thinking I won’t be as lucky this time.