After upgrade from 11.5 to 12, can't access Plesk

[aman207]

I am getting the "Function not implemented" error from /var/log/plesk/panel.log
I have tried reading this article but it seems to only apply to Ubuntu and I am running CentOS 6 x64

How can I get past this error?

Thanks
~aman

 

[IgorG]

But do you have line

shm /dev/shm tmpfs defaults 0 0

in /etc/fstab ?

For example, on my test Plesk 12 VPS server I see:

[root@ppu12-0 ~]# cat /etc/fstab
none /dev/pts devpts rw,gid=5,mode=620 0 0
none /dev/shm tmpfs defaults 0 0

[root@ppu12-0 ~]# cat /etc/redhat-release
CentOS release 6.5 (Final)