I can’t load anything on my MacBook Air.

Hello, recently I was getting redirection virus on safari. Whenever I tried to search something up it would redirect me to yahoo instead of google. By trying to fix this issue, I accidentally deleted a folder called “roots” and emptied the trash. After I did this, none of my browsers would load content. I tried both safari and chrome. I know that it’s not my network because it works fine on any other device. I tried using different dns servers but nothing worked. Can somebody please help me please and thank you. I’m on a MacBook Air by the way.