Left menu gone after update 12.5.30 Update 15

[Timo002]

Hello,

Tonight my Plesk 12.5 installation has updated to 12.5.30 Update 15. But now my left menu is gone, also the search bar at the top is gone. See the attached image for the menu that I mean. How can I get it back again?

 

[IgorG]

Just click on this tab:

 

[Timo002]

@IgorG
I have no words for this.. How stupid of mine! Thank you very much!