As you can see in the screenshot, there's a problem with the menu. Where it's written "19 years old cool kid" (joke btw), it appears when I hover over this place but I don't see my kind of "cover" picture and profile picture. Neither my name. I simply installed the theme and filled my info in WP user profile settings.
Attached files: Screenshot 2017-05-19 09.54.28.png
Hello Guillaume Lallier!
Try adding a cover image so it takes the space necessary for the description. You can do that in your Admin Panel > Appearance > Theme Options > Sidebar Nav
Thank you and best regards.