WHM and CPanel Not Showing - Blank Screen

[Insight]

When I logon to WHM and CPanel all I get is a blank white screen.

My host said I was running out of memory. They upgraded it but I
have to reboot using SSH. Well SSH won't let me login, it says the
"connection is closed..." no matter what client I use.

The following was emailed to me for the past couple of days until
earlier today:

cpsrvd failed @ Sun May 7 22:27:05 2006. A restart was attempted 
automagicly.
cpsrvd failed @ Sun May 7 22:35:26 2006. A restart was attempted 
automagicly.
cpsrvd failed @ Mon May 8 01:20:21 2006. A restart was attempted 
automagicly.
cpsrvd failed @ Mon May 8 02:18:43 2006. A restart was attempted 
automagicly.
cpsrvd failed @ Mon May 8 13:00:30 2006. A restart was attempted 
automagicly.
cpsrvd failed @ Mon May 8 15:00:11 2006. A restart was attempted 
automagicly

And the following was also emailed:

IMPORTANT: Do not ignore this email.
The hostname (node1.[mywebsite].com) resolves to . It should resolve to 
XX.XX.XXX.XXX. Please be sure to correct /etc/hosts as well as the 'A' entry 
in zone file for the domain.

Some are all of these problems can be caused by /etc/resolv.conf 
being setup incorrectly. Please check this file if you believe 
everything else is correct.


You may be able to automaticly correct this problem by using the ' Add an 
A entry for your hostname ' under ' Dns Functions ' in your Web Host Manager

[madaboutlinux]

Ist Issue :-
Login to your server and su to root.
Type these commands:
rm -f /usr/local/cpanel/cpanel
/scripts/installgd
/scripts/cleanmd5
/scripts/upcp
It may not fix at the first instance. Try the above scripts few times.

2nd Issue :-
Refer the following url to fix the Hostname error :- http://forums.cpanel.net/showthread.php?t=52218

Hope this should help you.