I am having trouble with wordpress 3.8 installs on my Webhostinghub server. From the wordpress Dashboard both the Plugin and Theme menu options don't load, instead taking me to a blank page of the website front end. The weird things is this is happening with two different wordpress installs with two different themes from different suppliers.
At first I thought it was either the theme or plugin. I tested this one my main website www.jonathonchan.com.au by uninstalling all plugins and changing the theme but the problem still persisted.
Today I installed wordpress (from within CPanel) on a subdomain ubc.jonathonchan.com.au and before doing anything the same problem occurred. This was on the default theme with not plugins installed. This leads me to think that maybe it's a hosting thing.
I've searched extensively different wordpress forums but cannot find anyone having the same problem.
I took a look at your account and it looks like the issue is caused by using PHP 5.2. As PHP 5.2 is quite old, it can cause various issues within newer software. I changed your PHP version to the system default of PHP 5.3 in which I now see that it is working correctly.