webadmin Error 404 ?

[[FSM]Chefkoch]

Hi,

i used the Search function but i didn´t found something usefull.

I made a fresh setup and then i went to the webadmin over network, i can not open the Serversettings Tab.
After a closer look i saw that ALL tabs are missing.

Code:

<h2>404 Not Found</h2>

Install worked without errors but i had some warings (something about CPP 7.1).
Oh btw. i did that generate "https" stuff too.

some1 got an idear whats wrong here?

cu
C

p.s. sorry for my english, im out of school for years!