Calling a remote repository to jenkins

Hello, im having problems to call one remote repository from my jenkins server (WINDOWS SERVER) to my gitlab(CENTOS 7 MINIMAL) , im traing to integrate bouth using the plugin GITLAB on Jenkins , but every tutorial that i had seen just explains how to integrate jenkins and gitlab that are on the same machine !

On the field Refspec, i insert one command that seems to be used to call remote repositorys- remote add pb… but doesnt worked.

This error says to me use remote parameters, but i dont know about git commands (used to call a remote repository that be runing on another machine ) :frowning: