Admin Center Menu acting weird

[Lycoriz]

Ok I don't what the hell happened but my Admin Center menu is acting weird

Usually it was like a Menu Line with dropdown menu's but now it just looks like a list the left site on my page.

Like this:
Main
Administration Center
Support and Credits
News and Newsletters
Package Manager

Configuration Core Features Features and Options Security and Moderation Languages Server Settings Current Theme Themes and Layout Modification Settings .... but should look like this Main | Configuration | ...... All the settings should be hidden in a drop down menu

[Lycoriz]

Facepalm realized I just had to click the small arrow next to the menu line