Portfolio Link does not work

Hello everybody I use WP Inspire Pro. Now I would like to deposit a link for each of my portfolio. Unfortunately, that does not work. The URL is deposited but no link will appear. I did the following: Design, Customizer, Theme Options, Portfolio - I chose the Select Type Custom, have deposited the link and saved everything. But no link does appear. What am I doing wrong? I have already disabled all plugins. No change. Many thanks for the help. Nicole