openSUSE Leap issue with Nvidia GeForce GTX 750ti

[hui]

Same solution as in this thread:

Trying to install a mail app with "Empty destination" error

This is your original installation medium which is no longer present. You need to remove it. Either via YaST Software Repositories or via zypper commands. If you need help, you can show your repolist via zypper lr -d and afterwards we can provide the correct removal command.