Help

I attempted advice #2 in this article https://www.afp548.com/Articles/Jaguar/cups-1.html. After doing do so I experience problems trying to add my which is directly connect to the Print Center. Getting an error. Now I can't print... I suspect the commmands I ran in the terminal cd /usr/libexec/cups/backend/ sudo ln -s /usr/bin/smbspool smb caused the glitch. how do I disable what I did so I can print again? B