Pulse audio reinstall on a laptop

Hello, I had to reinstall Pulse audio because unfortunately my laptop sounds was too low… It worked but now the button of low and high volume aren’t unfortunately working… Is anyone would have any magic? Thanks!

In pavucontrol, for example, you can amplify to over 100%.

You’re referring to your laptop / keyboard buttons?

Yes that the ones

I mean the button of my volume does not work anymore on my laptop sorry for the confusion