Problem before launching Postinstall


I’ve installed yunohost on an old laptop and i can’t launch the postinstallation because there a message wich is send over and over:
“hub 1-1:1.0: unable to enumerate usb device on port 1”.

I can’t pause the screen even if i do “ctrl+s” nothing is stopped so i can’t enter a command.

As you can see, i’m not familiar with linux and command.

If someone have some advice for me to solve that issue that will be great!