vbulletin option and server problem

[Mr.samy]

Hello ,

i have two forums in my dedicated server

and from 5 days ago ..

i see when i modify any thing in vbulletin option such that

turn off forums or change language or change style ...... etc

in admincp

and click save

and then when i go to forums index i did not found any modify

for example : when i change default style from vbulletin option nothing change

and when i try to turn off forums i go to forums and i see all is open ... and this happen also when i log out

and all these problem happen in two forums