WiFi USB adapter driver installation

I just bought a usb WiFi adapter off of Amazon and it came in the mail a few hours ago, and it upon inserting it into my pc, it didn’t work.

It came with a driver cd, so I popped it in and followed the directions to install the driver for GNU/Linux, which was the standard chmod +x ./install.sh , and then ./install.sh.

Well, it starts to do the installation in the terminal, and then it reaches a point where it asks for my root password to “make clean”. I give my password, but it doesn’t accept it. It says the authentication failed, or su: authentication failure compile make driver error: 1

Any idea what I should do? Or is there another way to install the needed packages, via Synaptic or something?

EDIT: here is the result of doing sudo ./install.sh enter image description here