[SOLVED] Blank page IP address management

[syslin]

Hello all,
I have running ispCP on CentOS 5.5 for few days.
Today I tried to add additional IP address from Admin panel -> Settings -> Manages IPs but this failed.

I can see in that screen the current (one) IP address, when I'm entered the new additional IP address, domain and Alias and chose eth0 then I press on the "Add" button and got a blank white page.

Any idea?

Thanks,
Miki
http://www.jaya.co.il