mehditey

sorry guys
but i also have this problem and this is up to wordpress not host
i have 2 wordpress blog on a server
when they were 2.6 both of them were generating core files. i upgraded one of them to 2.7 and now the 2.6 is generating but 2.7 is not

please help

hi guys,
i deactivated wp-cache but yet i get that error.
what i must do?

I also have this error
how did you solve the problem?
everything was ok til my computer suddenly restarted and since then i got this problem